No vegetarian's likely to be dismissed (3,3,4)

I believe the answer is:

get the chop

'be dismissed' is the definition.
(to get the chop is to get fired or dismissed)

I cannot understand how the remainder of the clue works.

(Other definitions for get the chop that I've seen before include "Lose job" , "Collect one's P45" , "what the butcher might do" , "Be sacked" , "Sack" .)

I've seen this clue in The Times.

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