1a,Great number in the caboodle squandered(6) ------?
3d,athlete displays humanity(9) --O-G---N?
4a,Change my one day in Florence yearly initially (6) M-D-F-?
10d,play quietly near playful arboreal animal.(5,4) T---R,---R?
11d,having faith in Reginald ,about 51,with promises to pay(9) A---G---S
Any help with any of the above would be very helpful.