Topless muscleman represented America (5,3)
I believe the answer is:
'america' is the definition.
(I've seen this before)
'topless muscleman represented' is the wordplay.
'topless' means to remove the first letter.
'represented' indicates anagramming the letters.
'muscleman' with its initial letter taken away is 'uscleman'.
'uscleman' is an anagram of 'UNCLE SAM'.
(Other definitions for uncle sam that I've seen before include "Federal government" , "Personification of the States" , "America as a recruiting officer" , "Iconic male relative of USA" , "Personification of USA" .)