Party involved in drink fiasco (5-2)

I believe the answer is:

screw-up

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'fiasco' is the definition.
The answer and definition are not the same part of speech.

'party involved in drink' is the wordplay.
'party' becomes 'crew' (both can mean a group of people).
'involved in' indicates putting letters inside.
'drink' becomes 'sup' (to sup is to drink).
'crew' inserted into 'sup' is 'SCREW-UP'.

Can you help me to learn more?

(Another definition for screw-up that I've seen is " Disaster".)

I've seen this clue in The Independent.

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