Disgusted utterance of a bachelor at Hatch End (3)

I believe the answer is:

bah

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'disgusted utterance of a' is the definition.
I can't tell whether this definition defines the answer.

'bachelor at hatch end' is the wordplay.
'bachelor' becomes 'BA' (abbreviation for Bachelor of Arts degree).
'at' says to put letters next to each other.
'end' indicates one should take the final letters.
The final letter of 'hatch' is 'h'.
'ba'+'h'='BAH'

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(Other definitions for bah that I've seen before include "''... Humbug'' Scrooge's cry" , "Exclamation of disgust or annoyance" , "''...! Humbug!'' (Scrooge)" , "Exclamation of contempt or disgust - Scrooge used to say it" , "Expression of disgust or contempt" .)

I've seen this clue in the Evening Standard.

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