Crossword Genius

Pig went for coarse plant (7)

Ross

I believe the answer is:

hogweed

'coarse plant' is the definition.
(hogweeds are coarse plants)

'pig went' is the wordplay.
'pig' becomes 'hog' (synonyms).
'went' becomes 'weed' ('go' can mean to urinate).
'hog'+'weed'='HOGWEED'

'for' acts as a link.

(Other definitions for hogweed that I've seen before include "Tall wild plant having thick stems and cluster of white to purple flowers" , "Large white-flowered plant" .)

I've seen this clue in The Guardian.
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