Crossword Genius

Where habit reduction is the focus? (5)

Ross

I believe the answer is:

rehab

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'the focus?' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'where habit reduction' is the wordplay.
'REHAB' is hidden in amongst the letters.
But, I am uncertain how this is indicated.

'is' is the link.

Can you help me to learn more?

(Other definitions for rehab that I've seen before include "A herb (anag.)" , "Rehabilitation (abbrev.)" , "remedial treatment" , "getting dry?" , "Restoration to health after, eg, addiction (colloq.)" .)

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