Reindeer tail trimmed to a point (4)
I believe the answer is:
scut
'reindeer tail' is the definition.
(I've seen this before)
'trimmed to a point' is the wordplay.
'trimmed' becomes 'cut' ('cut' can be a synonym of 'trimmed').
'to a' is a charade indicator (letters next to each other) (I've seen this in other clues).
'point' becomes 's' (S is an example).
'cut' after 's' is 'SCUT'.
(Other definitions for scut that I've seen before include "Short tail of hare" , "Short tail, such as rabbit's" , "Short erect tail" , "Reindeer tail" , "Short tail of rabbit, deer etc" .)