Change hands after turning around (4)
I believe the answer is:
swap
'change' is the definition.
(swapping is a kind of changing)
'hands after turning around' is the wordplay.
'hands' becomes 'paws' ('paw' can be a synonym of 'hand').
'after turning around' says the letters should be written backwards.
'paws' back-to-front is 'SWAP'.
(Other definitions for swap that I've seen before include "trade" , "Wasp (anag)" , "Fifty-fifty odds" , "Exchange for paws" , "Exchange; hands back" .)