MISSING LINK XL
SQUARE ROUTES (adapted)
Credit: GAMES Magazine - Oct. 1984
Will Shortz
 
Each pair or trio of words below shares a Missing Link - that is, its members have something in common, obvious or not. For example, RIVERS, NOSES, & VIOLINS can all have BRIDGES.

1. Gravy..........Mule
2. Neck..........Dove
3. Variety..........Party
4. Sun..........Speed
5. Clover..........Loose
6. Side..........Stiff..........Strong
7. Foot..........Key..........Sour

Answers:

1. Train
2. Turtle
3. Garden
4. Dial
5. Leaf
6. Arm 
7. Note