Funny - there's nothing in numerals (5)
I believe the answer is:
comic
'funny' is the definition.
(comic can mean funny or humorous)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for comic that I've seen before include "Amusing person" , "Raising mirth" , "Amusing, laughable" , "Priceless" , "Raising a laugh" .)