Some underwear in separate wash (5)

I believe the answer is:

rinse

'wash' is the definition.
(rinse is a kind of wash)

'some underwear in separate' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'RINSE' is hidden in the letters of 'underwear in separate'.

(Other definitions for rinse that I've seen before include "Use water to remove soap" , "Hair colourant" , "Hair tint" , "Wash off surface dirt" , "Sluice" .)

I've seen this clue in The Telegraph.

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