Crossword Genius

Casting option in Florida for unknown quantity getting stick (3,3)

Ross

I believe the answer is:

fly rod

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'casting option' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.

'florida for unknown quantity getting stick' is the wordplay.
'florida' becomes 'fl'.
'for' is a charade indicator (letters next to each other).
'unknown quantity' becomes 'y' (algebra).
'getting' says to put letters next to each other.
'stick' becomes 'rod' (I've seen this before**).
'fl'+'y'+'rod'='FLY ROD'

'in' is the link.

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I've seen this clue in the Irish Times.
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