Object of historic interest: some require licences (5)
I believe the answer is:
relic
'object of historic interest' is the definition.
(I've seen this before)
'some require licences' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'RELIC' is hidden in the letters of 'require licences'.
(Other definitions for relic that I've seen before include "Ossified survival" , "Memorial of antiquity" , "Saint's body part?" , "Reminder of times past" , "Holy fragment as of saint" .)