Turned up source of cod roe eaten by couple in a flash? (8)
I believe the answer is:
meteoric
'flash?' is the definition.
Both the answer and definition are adjectives. Perhaps you can see an association between them that I can't see?
'turned up source of cod roe eaten by couple' is the wordplay.
'turned up' is a reversal indicator.
'source of' says to take the initial letters (the start - or source - of the word).
'eaten by' is an insertion indicator (inserted letters get eaten).
'couple' becomes 'item' (a romantic couple are 'an item').
The first letter of 'cod' is 'c'.
'roe' placed into 'item' is 'iroetem'.
'c'+'iroetem'='ciroetem'
'ciroetem' reversed gives 'METEORIC'.
'in a' acts as a link.
Can you help me to learn more?
(Other definitions for meteoric that I've seen before include "Like a small body in space" , "Of a shooting star; remarkably fast" , "moving at high speed" , "(Of change) very rapid" , "Erotic me being suddenly brilliant" .)