University supporters in lift chaos (5)

I believe the answer is:

snafu

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

I don't understand the remainder of the clue.

(Other definitions for snafu that I've seen before include "Chaos (US slang)" , "confused activity" , "Chaotic situation" , "chaos, as usual" , "Chaotic state, mess" .)

I've seen this clue in The Sun.

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