I've got totally stuck on one and I'm only 20% through the puzzle! Its 54 across: Attempts to preserve Status Quo musical work - one in fashion among the things one owns. (7,10) I have ??L?I??...
This one never usually takes me two days ... am stuck on a few, would appreciate some help, please: 7d axing unorthodox atom scientist (11) t?m?h???i?g 16a source of oysters, holiday's food supply...