Kansas city originally manufactured fair vehicle (6)
I believe the answer is:
dodgem
'fair vehicle' is the definition.
'Dodgem' can be an answer for 'vehicle' (Dodgem is an example). I'm not sure about the 'fair' bit.
'kansas city originally manufactured' is the wordplay.
'kansas city' becomes 'dodge' (I've seen this before).
'originally' suggests taking the first letters.
The first letter of 'manufactured' is 'm'.
'dodge'+'m'='DODGEM'
Can you help me to learn more?
(Other definitions for dodgem that I've seen before include "ride - with 14a" , "Fairground amusement vehicle" , "Small car at funfair for bumping into others" , "Bumper car" , "Car used in fairground" .)