Rhino's long-nosed relative (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
tapir
(Other definitions for tapir that I've seen before include "Browser" , "nocturnal beast" , "Hoofed mammal; I trap (anag.)" , "I part with the pig-like animal" , "Tropical hoofed mammal with a flexible proboscis" .)