Armoured vehicle (4)
'armoured vehicle' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for tank that I've seen before include "Armoured vehicle - container for liquid or gas" , "place for petrol > bomb" , "Armour-plated military vehicle" , "Container for liquids - military vehicle" , "Fighting vehicle" .)
'armoured vehicle' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for scout car that I've seen before include "Military patroller" , "reconnaissance vehicle" , "Fast armoured vehicle" .)