14a A bubble formed in a liquid (4) ?E?L 15d A vessel for holding liquids, as a wooden cup, water bottle, tin can or oil drum (5) ?I?O? or ?Y?O? 21d Of a photographic negative, opaque (7) I?D?N?E
Thanks again Slaney. I seem to have mixed up my "ENDO's" with my "ENTO's" for INTENSE to fit in. Same meaning but wrong choice as so often happens in this crossword where words can have slightly different spellings and it's up to the solver to choose