Crossword Genius

Threatens, perhaps, with ECT, or sending to shrink (7)

Ross

I believe the answer is:

hectors

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'threatens' is the definition.
Although both the answer and definition are verbs in their -s form, I cannot see how they can define each other.

'with ect or sending to shrink' is the wordplay.
'HECTORS' is hidden within the letters.
However, I am uncertain how this is indicated.

'perhaps' is the link.

Can you help me to learn more?

I've seen this clue in The Times.
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