South American cloak (6)
I believe the answer is:
poncho
'south american cloak' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for poncho that I've seen before include "Blanket-like cloth with centre slit, worn as cloak" , "Cape with hole for head" , "Latin American-style cloak" , "Garment with opening for head" , "Garment with slit for the head" .)