Genuine-sounding fishing companion of Rod (4)
I believe the answer is:
reel
'fishing companion of rod' is the definition.
I can't tell whether this defines the answer.
'genuine-sounding' is the wordplay.
'genuine' becomes 'real' (similar in meaning).
'sounding' shows a homophone (sound like).
'real' sounds like 'REEL'.
Can you help me to learn more?
(Other definitions for reel that I've seen before include "energetic dance" , "Whirl around" , "spin" , "Scottish/Irish dance" , "Stagger in Irish dance" .)