What to wear for school job?

[Petuniasforsally]

I’ve just got a second job working in a private school and I’m clueless about what to wear. The dress code is ‘professional attire’ for support staff (which includes me) and ‘business wear, including jackets, ties and trousers/skirts’ for teaching staff. My main job involves being outside a lot and I really don’t own anything that could be described as professional attire. I’d like to put together perhaps 4 mix & match outfits that won’t cost the earth, but clueless about where to look. I’m mid 40s, 5ft 2in and a size 10. Please help me!

I should also have said that the job involves being on my feet a lot plus I’ve got a dodgy foot following a bad break so comfy shoes are a must (I live in trainers & haven’t worn a proper shoe/boot for years).

That's way above the level of dress that our school demands.
I was going to say nothing too tight, nothing to short, nothing too revealing.
BUT, it sounds more like trousers/ skirt and smart top, or a dress, that you could conceivably have a jacket with? And a pair of shoes / boots rather than trainers.
Not in a school environment, I used to have a stunt jacket that lived on the back of my chair. I wore it about 3 times a year... sounds like it might be one of those places you are going to!

Loose leg black trousers, smart trainers top

Look at Skechers boots.

what are others in the same role wearing? I’m a TA in a state primary and white t shirt and black trousers is the general ‘uniform’