Sounds fishy, bit it's a hi-fi component (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
tuner
'hi-fi component' is the definition.
(I've seen this in another clue)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for tuner that I've seen before include "Radio adjuster" , "Piano adjuster" , "piano man?" , "Radio receiver" , "Adjuster of pianos" .)