Related Clues:

• I may get in maps not fit for easy ride
• Straightforward progress shown by student beset by troubles, suffering?
• Easy progress, but suffering on grasslands
• Intends to circle island in poor health, getting uninterrupted progress
• Comfortable flats? Well, no
• A piece of cake, means to keep one sick
• A breeze travelling behind flier, did you say?
• Simple aircraft's weak by the sound of it