Crossword Genius

Become a couch potato? (8)

Ross

I believe the answer is:

vegetate

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'become' is the definition.
The answer and definition can be both related to change as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?

I can't explain the rest of the clue.

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(Other definitions for vegetate that I've seen before include "Lead a dull and inactive life" , "Do very little" , "Live a dull inactive life" , "Live uneventful life, stagnate" , "appears to be inert" .)

I've seen this clue in the Evening Standard.
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