About right checking finish for plaster (6)
I believe the answer is:
render
'plaster' is the definition.
(I know that plaster can be written as render)
'about right checking finish' is the wordplay.
I cannot quite understand how this works, but
'about' could be 're' ('re' means regarding or about) and 're' is located in the answer.
'right' could be 'r' (common abbreviation) and 'r' is found within the answer.
This may be the basis of clue (or it may be nonsense).
'for' is the link.
Can you help me to learn more?
(Other definitions for render that I've seen before include "Cause to be" , "Give brickwork a coat of plaster" , "Depict artistically" , "initial cover" , "put a coat on before decorating" .)