@hutcho,
I think I can confidently give you four answers.
52a CRISIS (CR=credit,IS added twice)
64aGUARANTEES (guardian less 501 DI+golf pegs)
67aALIBI (anagram of BALI+I internatioal leader)
70a SENEGAL (anagram of GALES and NE)
Hope that is of some help