Style of topless men around LA (4)
I believe the answer is:
elan
'style' is the definition.
(I know that style can be written as elan)
'topless men around la' is the wordplay.
'topless' means to remove the first letter.
'around' indicates putting letters inside.
'men' with its first letter taken away is 'en'.
'en' placed around 'la' is 'ELAN'.
'of' acts as a link.
(Other definitions for elan that I've seen before include "Stylish elegance" , "Impressive and energetic style" , "Energy, style and enthusiasm" , "Energetic style - anagram of 3" , "Vigour, style, enthusiasm" .)