Lovatts Colossus Giant Cryptic No. 124

Hi fellow Puzzlers
I am in need of a few answers for my Cryptic
32a It saved couples from going under (4'1, 3) = N?A?S???
62a Slouches quietly into ghettos (6) = ?L?M?S
69a Strong beams most appropriate for 32a? (11) = I have either FLOODLIGHTS or FLASHLIGHTS
23d Hunt out a polecat ?E???T
70d Some moreover, provide a source of iron (3) I know this has gotta be dead easy however! = ??E
Cheers
Smithy