Portable light (7)
'portable light' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for lantern that I've seen before include "Light held by 26/27 Across" , "Transparent case for candle" , "Light in a transparent protective case" , "Enclosed lamp" , "Cased lamp" .)
'portable light' is the definition.
(a torch is a portable light source)
This is the entire clue.
(Other definitions for torch that I've seen before include "Set fire to; electric lamp" , "Portable light; burn" , "Link" , "A large candle" , "Hand-held lamp or burning stick" .)