9a:dominant(7) ???R?M?
10a:removing lumps (in flour etc)(7) ???TING
21a:(Of a breeze)coming in from the ocean(7) ?N???R?
23a:swelling(up)(7) ?U???N?
1d: getting off scot-free(10) ?N???I?H?D
4d:young and attractive(6) ?U???E
16d:title block of newspaper or periodical(8) M?S???A?
20d:improve by making small changes(6) R???N?