Get rid of characters in hotel -- I'm in a temper (9)
I believe the answer is:
eliminate
'get rid' is the definition.
(I've seen this before)
'characters in hotel i'm in a temper' is the wordplay.
'characters in' says the answer is hidden in the clue.
'ELIMINATE' can be found hidden inside 'hotel im in a temper'.
'of' acts as a link.
(Other definitions for eliminate that I've seen before include "waste" , "Knock out" , "defeat" , "Take out" , "Cut out" .)