Disappear, carrying right sort of coating (7)
I believe the answer is:
varnish
'sort of coating' is the definition.
(I know that varnish is a type of coat)
'disappear carrying right' is the wordplay.
'disappear' becomes 'vanish' (synonyms).
'carrying' is an insertion indicator.
'right' becomes 'r' (common abbreviation).
'vanish' placed around 'r' is 'VARNISH'.
(Other definitions for varnish that I've seen before include "Apply hard shiny top coating" , "Hard, glossy, transparent coating" , "Gloss finish" , "Glossy stain" , "'Hard, transparent coating (7)'" .)