Driving aid? (3)
'driving aid?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tee that I've seen before include "'Drive off it, half-laughing (3)'" , "Golfing item" , "Part of course" , "Start of a hole in golf" , "Peg for golfer" .)
'driving aid' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for satnav that I've seen before include "Modern substitute for a map" , "Route guide" , "course-finding apparatus" , "Device for finding one's way" , "Talking road map?" .)