1 Down, Scoundrel captured by soldiers getting free (6)
3 Down/10 Across, Difficulty getting child to speak limiting onset language? That's a minor inconvenience (5,5,7)
4 Down, A form of strangled Danish? Hardly (8,7)
5 Down, Flight's first in statutory trials with airspace, possibly (6,9)
Compiler - PHI
Many Thanks