Repel such confusion in tomb (9)
I believe the answer is:
sepulchre
'tomb' is the definition.
(I know that sepulchre is a type of tomb)
'repel such confusion' is the wordplay.
'confusion' is an anagram indicator.
'repel'+'such'='repelsuch'
'repelsuch' anagrammed gives 'SEPULCHRE'.
'in' acts as a link.
(Other definitions for sepulchre that I've seen before include "Resting place" , "Burial place" , "Helps cure (anag)" , "Help curse (anag) - tomb" , "Burial chamber" .)