Duke being absent, intimidate family member (4)

I believe the answer is:

aunt

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'family member' is the definition.
(sister of a parent)

I can't explain the rest of the clue.

(Other definitions for aunt that I've seen before include "kinswoman" , "Family member" , "Female relative" , "Close relative" , "Family relative" .)

I've seen this clue in The Sun and The Telegraph.

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