Get into hot water or come clean? (5)
I believe the answer is:
bathe
This clue is a double definition.
'get into hot water' is the first definition.
(I've seen this in another clue)
'come clean?' is the second definition.
(I've seen this in another clue)
'or' acts as a link.
(Other definitions for bathe that I've seen before include "Swim or dip" , "Swim or paddle" , "spend time in the water" , "Wash, soak" , "Swim for pleasure, and clean oneself" .)