Errs badly about reversing charge for jackets (7)
I believe the answer is:
reefers
'jackets' is the definition.
(I've seen this before)
'errs badly about reversing charge' is the wordplay.
'badly' indicates an anagram.
'about' indicates putting letters inside.
'reversing' is a reversal indicator.
'charge' becomes 'fee' (fee is a kind of charge**).
'fee' written backwards gives 'eef'.
'errs' is an anagram of 'rers'.
'rers' placed around 'eef' is 'REEFERS'.
'for' acts as a link.
(Other definitions for reefers that I've seen before include "Nautical jackets" , "Joints (sl.)" , "Illegal cigarettes" , "Double-breasted jackets" , "Sailors' jackets" .)