We hear adulterer spotted quick one! (7)
I believe the answer is:
cheetah
'spotted quick one' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'we hear adulterer' is the wordplay.
'we hear' indicates a 'sounds like' (homophone) clue.
'adulterer' becomes 'cheater' (someone cheating on their partner).
'cheater' is a homophone of 'CHEETAH'.
Can you help me to learn more?
(Other definitions for cheetah that I've seen before include "Fast-running cat" , "Swift-running cat" , "Swift, spotted feline" , "Swift African cat" , "Long-legged feline" .)