Last three and last day for posting:
49 down Maybe wader's youngster keeping aloft over black duck (5,4) T-I-H -O-- I think
65 across In US, Number Thirteen originally accepted in hesitance when moving (10). A-E---E--- The 5th letter is the last letter of 49 down
54 down Facial features tilt upon greeting (6) -A-T-- I think