Each Rolls-Royce incorporates invention that's more advanced (7)
I believe the answer is:
earlier
'more advanced' is the definition.
('advance' can mean to reschedule something earlier)
'each rolls-royce incorporates invention' is the wordplay.
'each' becomes 'ea'.
'rolls royce' becomes 'rr'.
'incorporates' is an insertion indicator.
'invention' becomes 'lie'.
'rr' going around 'lie' is 'rlier'.
'ea'+'rlier'='EARLIER'
'that's' acts as a link.
(Other definitions for earlier that I've seen before include "Older" , "Formerly" , "Further in advance" , "Beforehand" , "Nearer the beginning" .)