11a.rugby player knocked over,but not initially pushed forward(9)p?u?e?l?d
12a.no.i'm whirling in waltz to lead?(9)d?m?n?n?c
15a.quick to lose power,being unwell(5)??e?y
16a.source of loud noise around end of enthronement?(4,5)b?e?t?w?r
18a.odd language encountered in seafaring at sea-latin,not english(9)??a???a??
21a.hollywood star's often confuse lines?(5)h?n?s