Thank Nerwen for that clue.
1. He is Atilla's father.
IMRAZOR: Initially, instant messaging and a shaving supplement reveal him.
3. A jewel loses its end, but gains expensive network, initially, for her.
4. Briefly, a state is inside the turncloak, for him.
OLWE: German lion spins for him.
6. A returning pronoun is inside a confused dwarf, for him
7. He is marbled, and confused
OROME: Confused Shakespearen lover reveals him
9. No price? Twist it for him.
10. An endless tree for him.
11. Reorder a Valie for a minstrel.
DAERON: No read, but backwards, for him.
DIOR: French company shares his name.
14. A Norse God finds a way, for him.
15. A direction inside a bloomer, for him.
16. Note common spice in a spin, for him.
17. Middle ear bones, in discord, reveal her.
18. Archaic dirt returns for him.
19. He is someone that laments, chaotically
20. He is common in Spain.