Related Clues:
- Expedition ringleader in touch?
- Begin on board
- One of three let off from expedition
- Board promoting setter, as setter might say?
- Prelapsarian journey?
- An outing in the fall
- Setter backing his word 'Begin!'
- Trousers initially split in stumble
- Take it on board — there's a thousand accepted by eBay
- Board ship
- Excursion (maybe hallucinatory!)
- Hallucinogenic drug experience - lose one's balance
- Journey - miss one's footing
- Set out on journey
- Run - dance - tumble