Sunday World Cryptic

[tadoran]

13a) Customs Officer may accept it when on it(4) D???
20a) One doctor and some of his dues-steep(5) I?b??
22a) Seemingly not an additional puzzle(7) N?N???s
12d) Late back herein-and out of this world(8) ???e????
Thanks All

[mazie]

13a Duty

[mac44]

13a. duty
20a. imbue

[Mamyalynne]

20 Imbue

[Baldric]

13 Duty

[mac44]

22a. nonplus

[Baldric]

22 Nonplus ?

[kettledrum]

20a imbue ... 1 mb (d)ue(s)

[mac44]

12d. ethereal

[kettledrum]

12d et here al

[tadoran]

Thank you, got this one finished now.

[chess]

need help with a few please 6 down financial assistance for motor reversal 14 across several war planes or part of one 15 down when heads are counted and everyone else too thanks

[Mamyalynne]

14 Wing?

Please provide letter counts.

[Mamyalynne]

15 Census

[Mamyalynne]

6 Backing

[chess]

yes will put count anymore thanks they all fit

[chess]

still stuck on one please 10 across is in the middle of 17 a piece of land 4 letters I-l-

[FrogNog]

Isle?

[FrogNog]

what's the answer to 17a?

[chess]

great help thanks all finished

[FrogNog]

YAY!