Drive time in upland area (5)
I believe the answer is:
motor
'drive' is the definition.
(I know that drive can be written as motor)
'time in upland area' is the wordplay.
'time' becomes 't' (abbreviation).
'in' means one lot of letters goes inside another.
'upland area' becomes 'moor' (I have seen 'Desolate area ' mean 'moor' so perhaps 'area' could also mean 'moor'. I am not sure about the 'upland' bit.).
't' going into 'moor' is 'MOTOR'.
Can you help me to learn more?
(Other definitions for motor that I've seen before include "Driver" , "Travel by car, engine" , "Car (informal)" , "Car; powered machine" , "Car; travel quickly" .)