Crossword Genius

Terrible fish rising (3)

Ross

I believe the answer is:

bad

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

'fish rising' is the wordplay.
'fish' becomes 'dab' (dab is a type of fish).
'rising' says the letters should be written backwards (going up in a down clue).
'dab' reversed gives 'BAD'.

(Other definitions for bad that I've seen before include "Harmful" , "Ill" , "Wicked" , "Evil, below standard or off" , "(Of food) decayed" .)

I've seen this clue in The Sun.
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