In disgust, he's cut short (3)

I believe the answer is:

gus

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'cut short' is the definition.
The definition suggests a singular noun which matches the answer.

'in disgust he's' is the wordplay.
'in' indicates a hidden word.
'GUS' is hidden in the letters of 'disgust he'.

Can you help me to learn more?

(Other definitions for gus that I've seen before include "T. S. Eliot's theatre cat" , "Augustus (dim.)" .)

I've seen this clue in the Evening Standard.

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