Enchanting woman accompanying boxing clubs (5)
I believe the answer is:
witch
'enchanting woman' is the definition.
'accompanying boxing clubs' is the wordplay.
'accompanying' becomes 'with' (I've seen this before).
'boxing' indicates putting letters inside ('box' can mean contain, as in to put in a box).
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'with' enclosing 'c' is 'WITCH'.
(Other definitions for witch that I've seen before include "Female practising black magic" , "Black cat and broomstick owner?" , "Broomstick riderof children's tales" , "One of a coven" , "Bad speller!" .)