Temptress escapes clutching locks of hair (7)
I believe the answer is:
tresses
'locks of hair' is the definition.
(I've seen this before)
'temptress escapes clutching' is the wordplay.
'clutching' indicates the answer is hidden within the clue.
'TRESSES' is hidden within 'temptress escapes'.
(Other definitions for tresses that I've seen before include "Long locks of hair" , "Long braids of hair" , "The hair of the head" .)