Writer about to match description of a literary craft? (3-5)
I believe the answer is:
pea-green
'description of a literary craft?' is the definition.
('pea-green boat' in The Owl and the Pussy-Cat)
'writer about to match' is the wordplay.
'writer' becomes 'pen' (I've seen this before).
'about' means one lot of letters goes inside another.
'to match' becomes 'agree' (agreeing is a kind of matching**).
'pen' enclosing 'agree' is 'PEA-GREEN'.
(Other definitions for pea-green that I've seen before include "Shade (of vegetable?)" , "The colour of podded vegetables and the Owl and the Pussycat's boat" .)