Crossword Genius

Horribly uncharitable when CERN members leave, as usual (8)

Ross

I believe the answer is:

habitual

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'usual' is the definition.
(I've seen this before)

I don't understand how the rest of the clue works.

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(Other definitions for habitual that I've seen before include "Chronic" , "Customary, regular" , "Done regularly and repeatedly" , "Done constantly or regularly (8)" , "Regular, usual" .)

I've seen this clue in The Irish Times.
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