Rinse out something sticky (5)
I believe the answer is:
resin
'something sticky' is the definition.
'rinse out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'rinse' is an anagram of 'RESIN'.
(Other definitions for resin that I've seen before include "Elemi, for example" , "Sap product" , "It exudes from pines" , "hashish, say" , "viscous material" .)