1ac. Formal garments altered by insufferable pedants (5) B???S
2dn. Incur chaos by using such archaic mystical writing.(5) ??N?C
4dn. Have trouble telling true anglers that this is the only way to catch a salmon. (4,3) G?L? NET[looks like GILL NET]
7dn. Bang goes it for one lying in the sun and do it in a very cold place or on a very wet place. (3) S?I [looks like SKI]