Get up around noon to wash (5)
I believe the answer is:
rinse
'wash' is the definition.
(rinse is a kind of wash)
'get up around noon' is the wordplay.
'get up' becomes 'rise' ('rise' can be a synonym of 'get up'**).
'around' is an insertion indicator.
'noon' becomes 'n'.
'rise' enclosing 'n' is 'RINSE'.
'to' is the link.
(Other definitions for rinse that I've seen before include "Wash off surface dirt" , "Hair colourant" , "Hair preparation" , "Use water to remove soap" , "Flush" .)