Stops going topless and relaxes (5)
I believe the answer is:
eases
'relaxes' is the definition.
(I've seen this before)
'stops going topless' is the wordplay.
'stops' becomes 'ceases' ('cease' can be a synonym of 'stop').
'going topless' means to remove the first letter.
'ceases' with its initial letter taken off is 'EASES'.
'and' acts as a link.
(Other definitions for eases that I've seen before include "Makes more comfortable" , "Makes less severe" , "Relieves, lightens" , "Borders, margins" , "Relieves, loosens" .)