mami I was one kankle chunky calf mother on a mission last Autumn - i ended up with spending too much but here is what I did. After my slim sporty friend insisting her calfs were wide (never look it) and she struggled to find some she just said - you have to try loads on.
I really did go out determined, previously been too embarassed. I got pairs from:
Next wide fit - straight up, small bit of elastic, riding boot style (2012)
Next wide fit - sludge I think, kind of relaxed soft wrinkle
Clarks wide fit - I never thought these would fit the zip got stuck but I relaised it was just stiff.
I never had any look in Jones the Bootmaker.
In the sales I tried on Dune boots in HoF. 'Toffee' is elsaticated, stunning high polished leather in tan and black. I really couldnt justify getting them but I saw them again the other day online.
My other tip is go half a shoe size up, sometimes it just give a little, you can always put an insole in.
Try to go when it's quieter and be up front, ask the Sales assistant what styles the have in a wide fitting, and could they help picking a few out. A good department store should be on top of having attentive service like this.
Buy a pair of ankle boots - this season they seem to be all about the block heel - easier to wear if you have the opposite of dainty sparrow ankles. But also dont forget smart little shoe boots in a kitten heal to higher can still be worn with dresses.