Advertised without dates for excursion (5)
I believe the answer is:
drive
'excursion' is the definition.
(thesaurus)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for drive that I've seen before include "Organised effort" , "computer store" , "offensive" , "Urge; approach to house" , "Use Aston Martin, say" .)