Feel sorry (6)

I believe the answer is:

regret

'feel sorry' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for regret that I've seen before include "Bad feeling" , "Rue, repent" , "Feel remorse for" , "Rue, repine" , "Be sorry for, wish it hadn't happened" .)

I've seen this clue in The Guardian.

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