Strike as being old-fashioned? (5)
I believe the answer is:
smite
'strike' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for smite that I've seen before include "Thwack" , "Strike heavily" , "Beat" , "Funeral pile" , "Hit hard in olden times" .)