Extended feast? It's all over! (10)
I believe the answer is:
widespread
'all over' is the definition.
Both the answer and definition are adjectives. Maybe you can see a link between them that I don't see?
'extended feast?' is the wordplay.
'extended' becomes 'wide' (similar in meaning).
'feast?' becomes 'spread' (I've seen this in another clue).
'wide'+'spread'='WIDESPREAD'
'it's' acts as a link.
Can you help me to learn more?
(Other definitions for widespread that I've seen before include "Generally prevalent" , "broad" , "Extensive" , "found in many places" , "Sweeping" .)