Monstrous female pair denied promotion (6)

I believe the answer is:

ogress

I'm a little stuck... Click here to teach me more about this clue!

'monstrous female' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

(Other definitions for ogress that I've seen before include "Monstrous female" , "Terror" , "Monstrous woman" , "Female giant in fairy tale" , "earsome lady" .)

I've seen this clue in The Times.

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