Vestment from back of shelf with no name tag (5)
I believe the answer is:
fanon
'vestment' is the definition.
(type of papal vestment)
'back of shelf with no name tag' is the wordplay.
'back of' suggests the final letters.
'with no name tag' becomes 'anon' (anonymous).
The final letter of 'shelf' is 'f'.
'f'+'anon'='FANON'
'from' is the link.
(Other definitions for fanon that I've seen before include "short cape" , "strip?" .)