Struggling with last few in SW corner:
41a "Italian let in to break the ice" (10)
?L?R?N?IO?E Looks like it should be FLORENTINE for the Italian, but if so can't see where breaking the ice comes in, unless it relates to florentine in its biscuit / cake meaning?
47d "Prime fodder keeping colour up" (6)
?E?D??
57a "Maybe oral fluency? Ultimately likely to lose it" (5)
T?S??
50d "Nickel removed from from salt for stock" (5)
Looks like it could be TRITE for stock, but not sure of parsing.
Any help much appreciated