Times Jumbo Cryptic 900

[BIll]

I need help with the last four so that I can relax and watch TV instead of wasting my time:

10a. Book some poor sweeper that's handled (5) B - S - -. BASIN?

12d. Debilitating disease couple said to be imitating (2-3) - - / T - O. No idea at all. If BASIN is correct, first word starts with N.

5d. Enter the world with thick hair, but not on top (5) H - T - H. HUTCH? HATCH? HITCH?

52a. In gospel-singing era, less pop (6,3). L - N - E - / A - E. LENTEN AGE, but why "less pop"?

[Lie-in King]

10a Besom - B(ook) + anag 'some'
12d Me-too - M(yalgic) E(ncephalitis) + 'too' = "two" (couple)
5d (T) Hatch
52a "...sin GING ERA LE ss..."

[peter164]

52a. in gospel-sinGINGER ALEss pop. The clue is POP.

[BIll]

You are great! My L was wrong. I'll look at 49d again. Many thanks

[peter164]

10a BESOM

[BIll]

Thanks all. Lie-In King, you're as impressive as Kayakamina, and that's really saying something. Maybe you're one and the same.