Crossword Genius

Relish hearing of choice -- a flower (10)

Ross

I believe the answer is:

piccalilli

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'relish' is the definition.
(I know that piccalilli is a type of relish)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for piccalilli that I've seen before include "Spicy relish" , "Hot pickle" , "preserve with mustard" , "Relish with chopped pickled cucumbers, green peppers and onion" , "Spicy pickle" .)

I've seen this clue in The Telegraph.
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