Each of the clued answers has the letters NIL (intact) embedded therein.

-1. A blue dye obtained from plants or made synthetically (4)

-2. Mentally or physically infirm with age (6)

-3. A strong paper or thin cardboard with a smooth light brown finish (7)

-4. Plain ice cream variety (7)

-5. Displaying or suggesting a lack of maturity (8)

-6. Not having enough money to pay for necessities (9)

7. A bell tower; usually stands alone unattached to a building (9)

-8. Involving only one part or side (10)

-9. Someone who talks while asleep (12)

-10. (of a publication) not provided with pictures (13)

2. senile

Bonjour, curly

Salut Gail. Good one. :tweety:

Good morning Curly!

3. manilla

Hi Rose. Good answer.

9. somniliquist

4. Vanilla

Bernie

Good ones.

6. penniless

8. unilateral

10 - uNILlustrated

More good ones.

5. juvenile

Merci Doreen.

1. anil