Sketch — ultimately novel way of communicating (5)
I believe the answer is:
drawl
'way of communicating' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe there's an association between them I don't understand?
'sketch ultimately novel' is the wordplay.
'sketch' becomes 'draw' (to sketch is to draw).
'ultimately' says to take the final letters.
The final letter of 'novel' is 'l'.
'draw'+'l'='DRAWL'
Can you help me to learn more?
(Other definitions for drawl that I've seen before include "Slow, protracted way of speaking" , "Speak slowly and lazily" , "Accent with slow and lazy delivery" , "particular tone of voice" , "Speak slowly and protractedly" .)