Inquisitor 1246

[Ripper]

Please can anyone advise me?
15 across: German short of time insists on amazing things (7)
_ASSERS
I'm pretty sure it's Gassers, but don't get the word play.
14 down: Handing place over initially means assailants had died off (Handing needs to be changed to Landing) (5) ONAH_
21 down: Playwright's lofty ambitions risk enemy finally scuttling his (risk is changed to risE) (6) _K_ISH Again I'm pretty sure it's skyish, but don't understand the word play.
I loved this crossword!
Any help gratefully received
Thanks in advance

[Oldred]

G (german) + asser(t)s

[Lie-in King]

Gassers - G(erman) + 'asser(t)s' (insists on, short of t(ime))

14d Omaha (Beach; Normandy landings) - O(ver) + m(eans) a(ssailants) ha(d-ied)

21d Skyish (Shakespeare's "lofty") - (final letters from) (ambition)s + (ris)k + (enem)y + anag (scuttling) 'his'

[Ripper]

Thank you Oldred & Lie-in King!