Crossword Genius

River always supplying fish (3)

Ross

I believe the answer is:

ray

'fish' is the definition.
(ray is a kind of fish)

'river always' is the wordplay.
'river' becomes 'r'.
'always' becomes 'ay'.
'r'+'ay'='RAY'

'supplying' acts as a link.

(Other definitions for ray that I've seen before include "Man who engaged in surrealist photography" , "Flash < Movie Player" , "bit of sunshine" , "Shaft, beam" , "Shaft of light" .)

I've seen this clue in The Independent.
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