Approbation for funny anti-slug cartoon (15)
I believe the answer is:
congratulations
'approbation' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'funny anti-slug cartoon' is the wordplay.
'funny' is an anagram indicator.
'anti'+'slug'+'cartoon'='antislugcartoon'
'antislugcartoon' with letters rearranged gives 'CONGRATULATIONS'.
'for' is the link.
Can you help me to learn more?
(Other definitions for congratulations that I've seen before include "praise" , "good show" , "well done" , "Cliff Richard hit" , "Best wishes" .)