4a. Shrine, substantial one attended by scholar (6) -A-I-- 10a. Clan chief, leader of troops in English coastal area (6) T-A--- I think this crossword was set by some drunks at Bletchley Park who hate me. Thanks, if you can help!!
BigDave, Fatima is the name of a village in Portugal where the virgin mary was supposedly sighted in 1917. So it's a shrine in the sense that lots of Catholics make a pilgrimage to it.