Crossword Genius

Occupation accustomed to everyday shocks and sometimes severe cutbacks? (12)

Ross

I believe the answer is:

hairdressing

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'occupation' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

I've seen this clue in The Telegraph.
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