Crossword Genius

“Consuming a good deal in drink, tumbling over, getting angry” - report (6,4)

Ross

I believe the answer is:

pistol shot

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'tumbling over getting angry report' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'consuming a good deal in drink' is the wordplay.
I cannot really understand how this works, but
'good' could be 'pi' (old-fashioned term for pious) and 'pi' is found within the answer.
'drink' could be 'shot' (I've seen this before) and 'shot' is found in the answer.
The remaining letters 'stol' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

(Another definition for pistol shot that I've seen is " use of weapon?".)

I've seen this clue in The Independent.
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