Note a carrier with more than one iron canister of gunpowder? (3,5)
I believe the answer is:
tea caddy
'canister of gunpowder?' is the definition.
(gunpowder is a type of tea)
'note a carrier with more than one iron' is the wordplay.
'note' becomes 'te' (musical note).
'carrier with more than one iron' becomes 'caddy' (someone carrying irons ie golf clubs).
'te'+'a'+'caddy'='TEA-CADDY'
(Other definitions for tea caddy that I've seen before include "drink dispenser" , "Container for Earl Grey etc" , "Container for bags (or leaves)" , "source of refreshment?" , "leaves container in the kitchen" .)