Very grateful for all help with these three clues please.
19ac: "Rent for housing well over what's required (2,5)." I have T-,--A-E.
45dn: "Crime writer to rip off an amount of old material? (7)." I have R-N-E-L.
51dn: "Bits of old satellite circling sky from south (5)." I have O-O-I.