Many people call a house "drum", particular burglars!! The man often leading a band in a marchals carries the rank as major.
I still have not got 1 down - nor 10 across.
1d: a cartoon by a regular associate. ?r???
10a: think nothing of concealing cluster. ???t
14D More strident European supporter(9) ???S???R?
20A Key Worker causing an eruption (5,5) ???? T???R
17D Plant to hang lossely below cushion (7) ?E?????