Crossword Genius

Rotten fish is sent back (3)

Ross

I believe the answer is:

bad

'rotten' is the definition.
(similar in meaning)

'fish is sent back' is the wordplay.
'fish' becomes 'dab' (dab is a type of fish).
'is sent back' is a reversal indicator.
'dab' backwards is 'BAD'.

(Other definitions for bad that I've seen before include "Harmful" , "Ill" , "SECOND HALF OF 16" , "Evil, below standard or off" , "Substandard" .)

I've seen this clue in The Independent.
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