Like a presidential beard, possibly? (5)

I believe the answer is:

bushy

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'like' is the definition.
Both the answer and definition are adjectives. Perhaps there's an association between them I don't understand?

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

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(Other definitions for bushy that I've seen before include "Hairy" , "Thick, unkempt" .)

I've seen this clue in the Evening Standard.

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