Crossword Genius

Key worker's jargon (4)

Ross

I believe the answer is:

cant

'jargon' is the definition.
(synonyms)

'key worker's' is the wordplay.
'key' becomes 'c' (musical key).
'worker' becomes 'ant' (worker is a type of ant).
'c'+'ant'='CANT'

(Other definitions for cant that I've seen before include "Hypocritical talk - sounds negative" , "lean over" , "make a lot pay?" , "Insincerity" , "tilt" .)

I've seen this clue in The Times.
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