Annoying worker caught in two minds? (12)

I believe the answer is:

antagonising

'annoying' is the definition.
(antagonising is a kind of annoying)

'worker caught in two minds?' is the wordplay.
'worker' becomes 'ant' (worker is a type of ant).
'caught in two minds?' becomes 'agonising' (eg agonising over a decision).
'ant'+'agonising'='ANTAGONISING'

I've seen this clue in The Times.

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