Sticky and coarse (5)
I believe the answer is:
tacky
I believe this clue is a double definition.
'sticky' is the first definition.
(I've seen this before)
'coarse' is the second definition.
(thesaurus)
'and' acts as a link.
(Other definitions for tacky that I've seen before include "Slightly sticky; in poor taste" , "Gummy -- tasteless" , "Gaudy" , "Sticky - vulgar" , "Sticky; showing poor taste" .)