Help please.
1a ...Muchacho(inca oddly) works without oxygen to get up here?(5,6) .....M???U,?I???U .....
28a ..Material in advance about unfinished article(7)E?R?H??
5d ....First class actor trained to climb in Balkans(7) .....??E?T?A ..
8d ...Together to raise pound to be invested in traffic controller(2,4) ...?E,BLOC ...
22d ...Engineers looked up effect of flash(3,) ...R?D,???