Related Clues:

• Word before "Mongolia"
• Like a rind
• External kind of route
• Being further from the centre
• On the exterior
• Exterior or external, like space
• This space is beyond earth's atmosphere
• It's bound to prove adventurous, but there's a drawback to it at last
• It's bound to be a challenge
• A twisted route isn't in it!
• One might get to rue this in no 7 down way
• It might be more off-centre so to rue this
• That's bound to be adventurous
• Seems it's less in here
• It's bound to be good for the young