Pict’s head covered in local cloth (5)
I believe the answer is:
plaid
'cloth' is the definition.
(plaid is a kind of cloth)
'pict's head covered in local' is the wordplay.
'head' says to take the initial letters.
'covered in local' becomes 'laid' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The first letter of 'pict' is 'p'.
'p'+'laid'='PLAID'
Can you help me to learn more?
(Other definitions for plaid that I've seen before include "Cloth with a criss-cross design" , "Scotsman's cloth" , "Scots cloth - Welsh party" , "Tartan patterned cloth" , "Check fabric" .)