Emblematic first century item to be restored (7)
I believe the answer is:
totemic
'emblematic' is the definition.
(I've seen this before)
'first century item to be restored' is the wordplay.
'first century' becomes 'c' (1st letter of 'century').
'be restored' indicates anagramming the letters.
'c'+'item'+'to'='citemto'
'citemto' with letters rearranged gives 'TOTEMIC'.
(Other definitions for totemic that I've seen before include "like an emblem" , "worthy of respect" , "Having significance as an emblem" , "like a sign" , "Emblematic, symbolic" .)