Attractiveness of dapper male stripped (6)
I believe the answer is:
appeal
'attractiveness' is the definition.
(appeal is a kind of attractiveness)
'dapper male stripped' is the wordplay.
I cannot really see how this works, but
'male' could be 'al' (shortened version of Alex or Alistair) and 'al' is present in the answer.
This may be the basis of clue (or it may be nonsense).
'of' acts as a link.
(Other definitions for appeal that I've seen before include "Application for court ruling to be reversed" , "Request made to umpire" , "Entreat, plead" , "A crustacean" , "Pray, invoke" .)