Such enthusiasm got us into a mess! (5)

I believe the answer is:

gusto

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'such enthusiasm' is the definition.
'gusto' can be an answer for 'enthusiasm' (gusto is a kind of enthusiasm). I am unsure of the 'such' bit.

'got us into a mess' is the wordplay.
'got us' anagrams to 'GUSTO'.
But, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for gusto that I've seen before include "Zest, great enjoyment in doing" , "Zest, pleasure in action" , "Spirit" , "Energy" , "Showing zest" .)

I've seen this clue in the Sydney Morning Herald.

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