Starting with PR this awful woman makes headway (6)

I believe the answer is:

ogress

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'starting with pr this awful woman makes headway' is the definition.
The definition suggests a singular noun which matches the answer.

This is all the clue.

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(Other definitions for ogress that I've seen before include "Female giant in fairy tale" , "Female giant in fairytales" , "Scary female" , "Particular nasty woman" , "'bloody difficult woman' ... ?" .)

I've seen this clue in The Globe and Mail.

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