Waited near truck to return driver’s guide (6)
I believe the answer is:
satnav
'driver's guide' is the definition.
(I've seen this before)
'waited near truck to return' is the wordplay.
'waited' becomes 'sat' (I've seen this in another clue).
'near' says to put letters next to each other.
'truck' becomes 'van' (van is a kind of truck).
'to return' says the letters should be written in reverse.
'van' written backwards gives 'nav'.
'sat'+'nav'='SATNAV'
(Other definitions for satnav that I've seen before include "course-finding apparatus" , "Guide for driver" , "one may help the driver" , "Talking road map?" , "Device for finding one's way" .)