Lightly wash some leisurewear in sets (5)
I believe the answer is:
rinse
'lightly wash' is the definition.
(I've seen this in another clue)
'some leisurewear in sets' is the wordplay.
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'RINSE' is hidden within 'leisurewear in sets'.
(Other definitions for rinse that I've seen before include "Hair preparation" , "Hair colourant" , "Mouth cleansing solution" , "blue one on top?" , "Use water to remove soap" .)