They veer and back victories that restrict democrat (5)
I believe the answer is:
winds
'they veer and back' is the definition.
The definition suggests an adverb but the answer is not.
'victories that restrict democrat' is the wordplay.
'victories' becomes 'wins' (I've seen this before).
'that restrict' is an insertion indicator.
'democrat' becomes 'd'.
'wins' enclosing 'd' is 'WINDS'.
Can you help me to learn more?
(Other definitions for winds that I've seen before include "Coils" , "Currents of air" .)