Stuck with 2 clues, plus one last corner.
12d. Expression of Patriotism (4-6) letters.
?l?e ?a?i?g
2d. Over enthusiastic (4-2) letters.
?u?a ?o.
Now for the corner.
72a (3.4) letters Wager (Money.
??y ?o?n
56d Acutely (7) letters ???R??y
62a Exaggerate a role (3 2 2 ) letters
??M ?T ?P