Set record in speech characterisation (9)
I believe the answer is:
depiction
'characterisation' is the definition.
(I know that characterisation can be written as depiction)
'set record in speech' is the wordplay.
'set record' becomes 'ep' (abbreviation for extended play record. I am not sure about the 'set' bit.).
'in' is an insertion indicator.
'speech' becomes 'diction' (I've seen this in other clues).
'ep' placed into 'diction' is 'DEPICTION'.
Can you help me to learn more?
(Other definitions for depiction that I've seen before include "Portrayal" , "drawing" , "Representation in art" , "picture" .)