Boot (10)
There are a few possibilities for this:
wellington
'boot' is the definition.
(Wellington boots are a type of boot)
This is all the clue.
(Other definitions for wellington that I've seen before include "City" , "Bomber" , "beef-dish?" , "Statesman" , "way to serve beef tenderloin" .)
'boot' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for can that I've seen before include "Tin; be able to" , "depth charge" , "May" , "Airtight metal container" , "Metallic container" .)