Thankyou for all of your advice MNers. Sorry for the long winded reply but anyway here's my update.
So I had words with DD about it just being an hour and getting through it, and encouraged her to tell her keyworker or senco, she sees them every lunchtime as she eats in a separate room with some other sens kids. I told her that if she had a chat with either one of them then I won't do that mum thing and intervene.
She hasn't spoken to them. She gets on well with them but I think she's frightened of getting in trouble with Teacher X if they are spoken to.
DD school refusing yesterday, eventually got her out to the bus stop in time for the bus (DD had Teacher X yesterday). Said teacher has given her another consequence, I didn't get the text until this morning but DD told me. The text indicates that she got given another consequence and to check the school website app (which lists her attendance and behaviour record) . She has been given another after school detention.
The difficulty I am having is I think it's a mixture of the teacher zoning in on DD, and 'keeping face' in front of a challenging class, but also DD appears to either not be hearing / listening or both either correctly or fully.
DDs version was that Teacher X told her to do Levels 1 - up to and including Level 5 (levels adapted for non-outing reasons). Teacher X's version is that DD was told to do Levels 1 - up to and including Level 6.
When I looked on DDs homework app, it was Teacher X's version that I could see.
Apparently Teacher X told her yesterday that if Level 6 wasn't done by this morning she'd get detention. I sat with a tearful DD last night (she's really struggling with this subject - I'm not excusing it but it's languages and I'm wondering if this isn't helping her dyslexia) and helped her do up to and including Level 7 to cover all bases.
No school refusing this morning as DD thinks she's okay having done the other level, I got the text to say she had detention at 8am this morning (DD leaves for the bus at 7:30am).
Note on the text this morning '1 new behaviour incident'. Making it sound more like she trashed the classroom rather than didnt complete her homework properly.
(yes I know both are important not to do).
Thankfully I have given DD enough money to get home as she usually catches the school bus, as it's rural, theres only one there and back.
As a sidenote, DD has now only ever had two detentions from Teacher X. They also have a commendation list. Where you get messages saying 'DD excellent effort in Geography on Wednesday' etc, these are all points given like merits. She has a long list of these including two recent ones (teo within two days) for... 'excellent homework' in two other subjects.
So my question is given DDs obvious not listening / paying attention to the instructions bit in the middle somewhere. How do I approach this now? If at all. Would you still approach the keyworker or give it one more chance?
DD has recently had her appointment with her consultant. I'm wondering if I could email the senco and arrange to meet her to discuss consultants recent advice and then as a P.S 'DD seems to be struggling in Teacher X's class - is there any way I and or school can support her?'.