Orange-nosed muppet (4)
I believe the answer is:
elmo
'orange-nosed muppet' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for elmo that I've seen before include "Puppet character" , "St ...'s fire, weather phenomenon of coloured glow" , "Fiery saint" , "Saint associated with fire" , "Sesame Street character - patron saint of sailors (with his own fire)" .)