One of these Christmassy ones! (Not very up on carols). 1a, 68a 46a First two lines of a carol about about the nativity and particularly the lack of suitable sleeping arrangements for a newborn baby 4,2,1,6,2,4,3,1,3 M?N?E?N C?I? ?????E? 37d Pressurised gas in a tank used as a power source. (10,3) ?O?P?E?S?S???