My first attempt at a Guardian Cryptic.....!
I've managed to complete all but one - but also cannot parse four others.
The one I couldn't do at all is ...
17A: Woman has kids in tune? (7)
? E ? I ? M ?
and the ones I cannot parse are.....
12A: Instrument with reversed polarity produces undergarment (6) I have 'corset' for this.
22A: Soldiers beginning to talk to soldiers' teacher (6)
Answer seems to be 'mentor'
mentor = teacher( definiiton) soldiers = men? then stuck.....
2D: Pointless role model, allegedly
Answer is idle (= pointless; definition) but cannot see the rest.
18D: Low, racist organisation set up to conceal source of white dance move
Answer is moonwalk but cannot parse .
Help appreciated please!