Some cameleers in brawl (5)
I believe the answer is:
melee
'brawl' is the definition.
(I've seen this in another clue)
'some cameleers in' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'MELEE' is hidden in the letters of 'cameleers in'.
(Other definitions for melee that I've seen before include "Confused brawl" , "A confused free-for-all" , "confused group" , "Fracas" , "Skirmish" .)