Get up around noon and wash (5)
I believe the answer is:
rinse
'wash' is the definition.
(I know that rinse is a type of wash)
'get up around noon' is the wordplay.
'get up' becomes 'rise' (synonyms).
'around' is an insertion indicator.
'noon' becomes 'n' (abbreviation).
'rise' placed around 'n' is 'RINSE'.
'and' acts as a link.
(Other definitions for rinse that I've seen before include "Hair colourant" , "Sluice" , "Wash off surface dirt" , "Hair tint" , "Use water to remove soap" .)