One may start driving here (3)
I believe the answer is:
tee
This could be a double definition.
'one may start' is the first definition.
The answer and definition can be both locations as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'driving here' is the second definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
Can you help me to learn more?
(Other definitions for tee that I've seen before include "Golfing item" , "Golfer's support" , "Where one drives from" , "Drive off it, half-tittering" , "Starting place on the golf course" .)