I'm stuck on potentially my last clue,
46dn Robber in wild places (7)
I have b-i-f-d
which has me feeling i have 2 mistakes, namely 53ac Forces' canteen not being NAFFI & 55ac Give in(9) as surrender.
That said i've not got 44dn solemn, thoughtful (7)
Many thanks in advance from any helpful soul out there