A crop is knocked flat (7)

I believe the answer is:

prosaic

'flat' is the definition.
(I've seen this before)

'a crop is knocked' is the wordplay.
'knocked' indicates an anagram.
'a'+'crop'+'is'='acropis'
'acropis' with letters rearranged gives 'PROSAIC'.

(Other definitions for prosaic that I've seen before include "Is a crop (anag) - unimaginative" , "Pedestrian, unimaginative" , "Non-poetic, unromantic" , "Lacking originality" , "flat" .)

I've seen this clue in The Telegraph and The Globe and Mail.

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