Inhale smoke from small flame-throwers? (7)
I believe the answer is:
dragons
'flame-throwers?' is the definition.
'inhale smoke from small' is the wordplay.
'inhale smoke' becomes 'dragon'.
'from' is a charade indicator (letters next to each other).
'small' becomes 's' (abbreviation - e.g. clothes size).
'dragon'+'s'='DRAGONS'
(Other definitions for dragons that I've seen before include "Menacing women" , "Fire-breathing, reptile-like creature" , "Fire-breathing creatures" , "Mythical fire-breathing monsters" , "Creatures of Teutonic mythology" .)