TWO - WAY
Credit: Will Shortz in The Puzzlemaster Presents

Put two letters on the dashes in each word to complete a common, uncapitalized, four-letter word which will spell another common, uncapitalized , four-letter word in reverse. Numbers 10, 11, and 12 have two answers.

For example, given  A _ _ T, the answer would be ABUT.
ABUT in reverse is TUBA

1. D _ _ W
2. G _ _ T
3. E _ _ L
4. G _ _ F
5. P _ _ G
6. B _ _ D
7. D _ _ A
8. W _ _ F
9. O _ _ E
10. D _ _ L
      D _ _ L
11. T _ _ M
      T _ _ M
12. E _ _ T
      E _ _ T

Answers:

1. DRAW
2. GNAT
3. EVIL
4. GOLF
5. PLUG
6. BARD
7. DIVA
8. WOLF
9. OGRE
10. DIAL - DUAL
11. TEEM - TRAM
12. EMIT - EDIT