Corrie's sacked staff (7)
I believe the answer is:
crosier
'staff' is the definition.
(crosier is a kind of staff)
'corrie's sacked' is the wordplay.
'sacked' indicates anagramming the letters.
'corries' is an anagram of 'CROSIER'.
(Other definitions for crosier that I've seen before include "one's hooked!" , "Staff carried by a bishop" , "Ecclesiastical staff" , "Bishop's crook" , "A bishop's staff as symbol of office" .)