Crossword Genius

If dodgy on the quiet, may be in bad odour (4)

Ross

I believe the answer is:

fish

I'm a little stuck... Click here to teach me more about this clue!

'be in bad odour' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.

'if dodgy on the quiet' is the wordplay.
'dodgy' is an anagram indicator.
'on' is a charade indicator (letters next to each other).
'the quiet' becomes 'sh'.
'if' with letters rearranged gives 'fi'.
'fi'+'sh'='FISH'

'may' acts as a link.

Can you help me to learn more?

(Other definitions for fish that I've seen before include "Aquatic creature(s)" , "Possibly the sole" , "Eg, sturgeon" , "Aquatic animal(s)" , "Trawler's catch" .)

I've seen this clue in the Evening Standard.
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