Lovatts Colossus No 154

I seem to be stuck on a few...
CASHWORDS 154:
66A. Hilariously(funny), ?I?T?U?L? (9)

GIANT CRYPTIC 154:
65A. At last they can work on their toes-and show a clean pair of heels to boot, ?H?E?A?E?S (10)
8D. Pop got harsh letters and pictures. P?O?O?R?P?S (11)

STINKER 154:
23A.Controversial, T?NDE?TIO?S (11)
151A. Endowment ?N?E?IT?N?E (11)
63D: Film plastic, CEL??L?I? (9)
77D: Trial-and-error problem solving, HE??I?T?CS (10)
127D: Padding craft, ?A?A? (5)
188D: Having two legislative chambers, BI?A?E?AL (9)

Thank you in advance to anyone who can please help with the answers..