Help on a few please
1a silly old lady and current old man coming back (6)
???c?p
5a dilute the fruit regularly through cleaning (8)
W???r?a?
14a absence of gravity or a term describing it (8)
H???r?l?
17d secretary's learned to make progress (7) p?s????
18a cheap beer, see (6) ??d?c?
Thanks in advance