Hot boxer guided round temptress (7)
I believe the answer is:
delilah
'temptress' is the definition.
(I know that temptress can be written as Delilah)
'hot boxer guided round' is the wordplay.
'hot' becomes 'h' (abbreviation eg on taps).
'boxer' becomes 'ali' (Muhammad Ali).
'guided' becomes 'led' ('lead' can be a synonym of 'guide').
'round' is a reversal indicator.
'h'+'ali'+'led'='haliled'
'haliled' backwards is 'DELILAH'.
(Other definitions for delilah that I've seen before include "tempting girl" , "Dangerous temptress - Samson's girlfriend" , "Biblical betrayer" , "She betrayed Samon to the Philistines" , "See 8 across" .)