Hi chris
I found it straightforward, except, of course, for the two short ones I have left!
5dn Spell out loud to unsettle (4)
19dn Extracted from noisy climber's support (5)
(I've deliberately not given the letters I have, so as not to spoil it for others). Any hints?
21dn Field marshal needs to lose weight (4) - I would have thought the more obvious way of reading it is that he doesn't need to lose weight!