Innovative tyre seen around front of car (7)
I believe the answer is:
radical
'innovative' is the definition.
Both the definition and answer are adjectives. Perhaps you can see an association between them that I can't see?
'tyre seen around front of car' is the wordplay.
'tyre' becomes 'radial' (radial is a kind of tyre).
'seen around' is an insertion indicator.
'front of' indicates taking the first letters (the letter at the front of the word).
The first letter of 'car' is 'c'.
'radial' enclosing 'c' is 'RADICAL'.
Can you help me to learn more?
(Other definitions for radical that I've seen before include "Progressive; extreme" , "leftist?" , "'Revolutionary, extremist (7)'" , "Dial car in order to be drastic" , "Tending towards extreme political views" .)