Somewhat gruffly in general quitting hurriedly (6)

I believe the answer is:

flying

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

'quitting hurriedly' is the definition.
I can't tell whether this definition defines the answer.

'somewhat gruffly in general' is the wordplay.
'somewhat' says the answer is hidden in the clue.
'FLYING' is hidden within 'gruffly in general'.

Can you help me to learn more?

(Other definitions for flying that I've seen before include "- Boat; - bomb; - fox" , "(Of flag) displayed on a flagpole" , "UFO" , "Hasty" , "- Buttress, - bomb" .)

I've seen this clue in The Telegraph.

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