Here are today's shaded clues for you - 51a A bunch of bananas etc [4] 55a Australian anthropologist and anatomist who discovered the first specimen of the extinct hominid Australopithicus Africanus...
12d a member of a group of french artists who followed a 20th century movement of modern art and 6d Genus of thrush-like tropical passerine bird, typically with brightly-coloured plumage
30 ac Gondoliers song 10 letters
27d Capital of Cameroon I have Yaounde but doesn't fit U???N??
47d SI unit of luminous flex L???N
Thanks in anticipation...