10a. a number of the greediest eiders fly west for regular food supplies. ?I?T?
11a. the wee sister produces a university dissertation. ?H?S?S
16a. it's a secret store of money, they say for atilla's mob. ????E
16d. the frisky phantom oh henry v111's amazing court. ??M?T?N
17d. old clothing that's found hidden in a minaret. ??I?E?T