Thanks for all your help everyone! :)
The final clues are:
Organize hippy a dry bath, say, to celebrate an annual event!(5,8) - HAPPY BIRTHDAY
Found in the drool drips, at death's door.(3) - OLD
Reversing in traffic makes him windy. (4) - FART
Reportedly won with an ace. (3) - ONE
O oft spoilt tread (4) - FOOT
Thine improper insertion (2,3) - IN THE
Serious Plot (5) - GRAVE
I've heard a large number are coming for tea. (5) - FORTY
Seeking discomfort you waited four decades! (5) - FORTY
Enter lodge (5) - BOARD
wildfowl play (4) - GAME
Sad embargo dances in the basement (5,5) - BOARD GAMES
(we have board game nights in his basement)
international seven cut down, is Space Thug(6) - CHEWIE
(Chewie was the nickname of a former intern of his)
Chicken, reversed father, frog daddy (6) - Henson.
(his middle name)
Starting again a show, for cancer ladies (6) - OSHAWA
Oak rake scatters, damaging song (7) - KARAOKE
prostitute, me and I, are intimates (6) - FRIEND
HO + MIE is homie, which is another word for Intimates, both of which are words for FRIEND.
Initially protective, Ugandan leading enforcers went round Zulus twice, solving the mystery (6) - PUZZLE
Golden god's creator (6) - AUTHOR
Arise for this joker. (5-2) - STAND-UP