[andromeda]

1. I’m one primitive instinct short to be an amorphous substance

2. I’m one small portion short to be a range of activity

3. I’m one pronounce short to be a literary composition

4. I’m one certain short to be severely criticized

5. I’m one decay short to be a set of cards

6. I’m one principal short to be an area of activity

7. I’m one descendant short to be a reprimand

8. I’m one authentic short to be a breakfast

9. I’m long period of time short to glow

10. I’m one disapproval short to be a prohibition

11. I’m one practice short to engage in meditation

What am I?

[andromeda]

s(wing)

Flourescent Adolescents

No, no, no

you had ta(boo) and m(use) - that's correct. Check my previous riddle.

[andromeda]

Am flourescent adolescent?

No, no, no

AM goes on the end

"Fluorescent Adolescent" AM - Google it!

Nice job and even if something seams off it doesn't mean that you were wrong, CL learned that in the previous one

[Nikyma]

Yes, I've learned that one the hard way a couple of times myself.