Crossword Genius

I am in pursuit in a carriage (6)

Ross

I believe the answer is:

chaise

I'm a little stuck... Click here to teach me more about this clue!

'carriage' is the definition.
(I know that chaise is a type of carriage)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for chaise that I've seen before include "... longue, chair for reclining" , "Light open carriage" .)

I've seen this clue in The Globe and Mail.
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