Can it turn north? (3)
I believe the answer is:
tin
'can' is the definition.
(both are metal containers)
'it turn north?' is the wordplay.
'turn' says the letters should be written backwards.
'north?' becomes 'N' (abbreviation).
'it' reversed gives 'ti'.
'ti'+'n'='TIN'
(Other definitions for tin that I've seen before include "Silver-white metal, used to make cans" , "Kind of metal often used as food container" , "With copper, makes bronze" , "Silvery-white metal used in cans" , "Atomic number 50" .)