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Like a horse used for a trick (6)

Ross

I believe the answer is:

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'like' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

I can't explain the remainder of the clue.

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(Other definitions for wooden that I've seen before include "Insensible" , "The lowest score may get this spoon" , "Ligneous" , "Monotonous like timber" , "Stiff, awkward" .)

I've seen this clue in the Evening Standard.
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