You might peck at this omelet, it's nutty (9)

I believe the answer is:

mistletoe

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'you might peck at this' is the definition.
The definition suggests a singular noun which matches the answer.

'omelet it's nutty' is the wordplay.
'nutty' indicates anagramming the letters.
'omelet'+'its'='omeletits'
'omeletits' anagrammed gives 'MISTLETOE'.

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(Other definitions for mistletoe that I've seen before include "Evergreen plant" , "tempting a smack?" , "Tree parasite" , "Christmas berry" , "Plant with white berries, facilitates kissing" .)

I've seen this clue in The Times.

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