So I gave the screwdriver down side a go. I’ll have to find a better screwdriver for this in future. First one caused quite a few nicks to the trousers, and second though better, shaved the white frame quite a bit. Looks slightly messy now, but thankfully it’s the black legs of one of the characters from 4007 so immediately not noticeable.
The grog slouch is now fixed though! Just kept bending the back white clip forward whilst leaving the rest of the Klicky as it is.
Will look to get another screwdriver and fix the other one at a later date.
Update: I have no self control (guess hand in hand with starting to collect things) - so used second drive again with tape on end but still nicked the legs. If anyone has recommendations on polishing/smooth out that kinda thing be appreciated