Catch the name of a varnish (5)
I believe the answer is:
copal
'a varnish' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'catch the name' is the wordplay.
'catch' becomes 'cop' (I've seen this before).
'the name' becomes 'al' (**).
'cop'+'al'='COPAL'
'of' is the link.
Can you help me to learn more?
(Other definitions for copal that I've seen before include "Resin used in varnish" , "Aromatic tree resin" , "Hard resin" .)