4d) On one occasion union invested a small amount (5) O?N?E
8d) Unfocused, barely moving... (6)
14a) Appear calm at first in city in serious situation (9) ??E???N??
16a) Respected politician, American guy? (9) ??A?????N
16d) Boss endlessly makes faux pas (5) ??I???
All help greatly appreciated