Cancel US sitcom without finale (5)

I believe the answer is:

scrub

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'cancel' is the definition.
(scrub can mean to cancel or erase)

I can't explain the rest of the clue.

(Other definitions for scrub that I've seen before include "Stunted growth" , "Clean by rubbing really hard" , "Powerful wash" , "Scour - stunted trees" , "Drop" .)

I've seen this clue in The Times.

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