Big truck (3)

I think it could be either:

rig

van

'big truck' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for rig that I've seen before include "Apparatus; (boat's) sails" , "Oil platform" , "engineer or > doctor" , "Arrangement of masts, spars and sails on a ship" , "Apparatus; outfit" .)

I've seen this clue in The Washington Post, the King Feature Syndicate and the Penny Press.

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