In reply to The Pylon King:
From the BMC RAD for the North side (south side being entirely banned at the moment):
[Groups]
"The National Trust does not allow commercial activity on their land in the Gorge. Most of the land on the north side is mapped as Open Access under CRoW, however this only gives a right of access for recreational users and the NT have chosen not to allow commercial groups (i.e those paying for instruction) to use their land in this instance. Non-commercial groups for whom no money is changing hands are free to access the crags however, providing they follow the access advice above."
https://www.thebmc.co.uk/modules/RAD/viewcrag.aspx?id=929
So if the Scouts thing is totally voluntary it should be OK. There isn't much sport below 6a though; don't know about the trad.