Turn back women wearing jeans (6)
I believe the answer is:
swivel
'turn' is the definition.
(swiveling is a kind of turning)
'back women wearing jeans' is the wordplay.
'back' shows that the letters should be reversed in order.
'women' becomes 'w' (standard abbreviation).
'wearing' is an insertion indicator.
'jeans' becomes 'levis' (Levi's is a brand of jeans).
'w' going inside 'levis' is 'leviws'.
'leviws' in reverse letter order is 'SWIVEL'.
(Other definitions for swivel that I've seen before include "Turn on a chair, say" , "swinging" , "Spin on the spot" , "Rotating coupling" , "Turn about a point" .)