13a) Ducks entering back of boat? What's going on (5) A?O??
16a) Boss is beseeching unnamed rebels (3.6) B?G ?????E
21d) play note outside loudly many times (5) O????
23a) Aristocrat's medal hanging from this? (7) E?R????
24a) Groom ate nuts, contracting disease (7) ????N??
Thank you in advance for any help.