Crossword Genius

Fishy edition of Keats (5)

Ross

I believe the answer is:

skate

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

'fishy edition' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'keats' is the wordplay.
'keats' anagrams to 'SKATE'.
Though, I'm not clear how the anagram is indicated.

'of' acts as a link.

Can you help me to learn more?

(Other definitions for skate that I've seen before include "current collector" , "Ice-rink shoe" , "Large marine fish" , "Runner" , "Complete, 19-less" .)

I've seen this clue in the Evening Standard.
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