Each pair of words is missing a 3-letter common middle.

-1. ag---st, d---ty
-2. en---ss, a---und
-3. wa---e, mu---er
-4. g---ie, k---a
-5. j---ey, w---ess
-6. he---ort, el---se
-7. ca---n, co---ve
-8. o---y, a---ice
-9. ab---t, re---t
-10. com---t, a---e

8. oVARy aVARice

1. agAINst dAINty

2. enGROss/aGROund

5. jITNey wITNess

3. waFFLe muFFLer

4. gOALie, kOALa

7. cancan concave

All good!

6. heLIPort elLIPse

9. abSENt, reSENt

Bernie

10 - compact, apace

Perfectly done!