Women’s support tops will not show off strong muscles (5)
I believe the answer is:
brawn
'off strong muscles' is the definition.
'brawn' can be an answer for 'muscles' (I've seen this in another clue). I'm not certain of the 'off strong' bit.
'women's support tops will not' is the wordplay.
'women's support' becomes 'bra' (I can't explain this - if you can you should give a lot more credence to this answer).
'tops' says to take the initial letters.
The initial letters of 'will not' is 'wn'.
'bra'+'wn'='BRAWN'
'show' is the link.
Can you help me to learn more?
(Other definitions for brawn that I've seen before include "meatloaf" , "Muscular strength" , "Muscle; strength" , "Pressed cooked meat; strength" , "Muscularity" .)