Skilled listener: fish in one's ear? (5)
I believe the answer is:
tuner
'skilled listener' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'fish in one's ear?' is the wordplay.
'fish' becomes 'tuna' (tuna is a type of fish).
'in one's ear?' indicates a 'sounds like' (homophone) clue.
'tuna' sounds like 'TUNER'.
Can you help me to learn more?
(Other definitions for tuner that I've seen before include "Piano adjuster" , "Adjuster of pianos" , "piano man?" , "Motor specialist" , "Radio adjuster" .)