1. I'm fabulous on purpose. Legend.
2. Look for one in climbing country. Nigeria.
3. Soldiers, single file, protecting European navigator? Orienteer.
4. Specific articles are reduced to singular essay. Thesis.
On in cricket is also known as "Leg" + end for purpose gives Legend - fabulous.
OR other ranks - soldiers, single - i + enter - file protect European - e = or i ente e r?