Crossword Genius

He has a fish for curing (7)

Ross

I believe the answer is:

healing

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'curing' is the definition.
('heal' can be a synonym of 'cure')

'he has a fish for' is the wordplay.
'has' says to put letters next to each other.
'fish for' becomes 'ling' (I can't explain this - if you can you should give a lot more credence to this answer).
'he'+'a'+'ling'='HEALING'

Can you help me to learn more?

(Other definitions for healing that I've seen before include "Recovering, becoming healthy" , "Mending" , "Curative" , "Getting better" , "Restoring to health" .)

I've seen this clue in The Globe and Mail and The Telegraph.
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