New role requiring special knowledge (4)
I believe the answer is:
lore
'special knowledge' is the definition.
'lore' can be an answer for 'knowledge' (lore is a kind of knowledge). I am not sure about the 'special' bit.
'new role' is the wordplay.
'new' indicates an anagram.
'role' is an anagram of 'LORE'.
'requiring' is the link.
Can you help me to learn more?
(Other definitions for lore that I've seen before include "old-fashioned thong" , "Body of knowledge" , "Folk knowledge" , "Ancient learning" , "Role for tradition" .)