Hide ____ hair (3)
(Other definitions for nor that I've seen before include "Neither one ... the other" , "Negative conjunction" , "It's also not" , "Neither pairing" , "Common conjunction, goes with neither" .)
'hide hair' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fur that I've seen before include "Mink or ermine, say" , "Hair covering animal's body" , "Expensive coat; deposit in kettle" , "Deposit inside kettles" , "Coating in kettle" .)