Last bit of stuff in a loom (5)
I believe the answer is:
final
'last' is the definition.
(I know that last can be written as final)
'bit of stuff in a loom' is the wordplay.
'bit of' indicates a hidden word.
'FINAL' is hidden in the letters of 'stuff in a loom'.
(Other definitions for final that I've seen before include "Last in a series of games or contests" , "Not to be altered" , "Like one's journey to cemetery" , "big match" , "binding" .)