Arboreal primates with pointed snouts and long tails (6)
I believe the answer is:
lemurs
'arboreal primates with pointed snouts and long tails' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for lemurs that I've seen before include "Madagascan primates" , "Mammals related to monkeys" , "Monkey-like animals of Madagascar" , "Arboreal creatures with pointed snouts" , "Tree-dwelling primate with large eyes and long busy tails" .)