Protector:  G __ __ R __ I __ N (Guardian)

What I heard it through:  G R __ __ __ __ I N E  (Grapevine)

Mischevious devil: G R __ __ __ I N (Gremlin)

Embarassment: __ __ __ G R I N  (Chagrin)

Incline:  G R __ __ I __ N __  (Gradient)

Humiliating:  __ __ G R __ __ I N __ (Degrading)

Originating in Athens: G R __ __ I __ N (Grecian)
 
Agricultural:  __ G __ __ R I __ N  (Agrarian)

Non-spaniard:  G R I N __ __  (Gringo)

Pig noises : G R __ __ __ I N __ (Grunting)

Circumvolution:  G __ R __ __ I __ N  (Gyration)

Station troops:  G __ __ R I __ __ N (Garrison)

Movement from one place to another:  __ __ G R __ __ I __ N (Migration)

Shirley Temple ingredient: G R __ __ __ __ I N __ (Grenadine)

Sprout:  G __ R __ I N __ __ __ (Germinate)

Head of an eagle, body of a lion:  G R __ __ __ I N  (Griffin)

Football field:  G R __ __ I __ __ N (Gridiron)
 
Exhausting:  G R __ __ __ I N __ (Grueling)
 
Oleo: __ __ __ G __ R I N __ (Margarine)

Reddish orange fruit:  __ __ __ G __ R I N __ (Tangerine)

Placing bets:  __ __ G __ R I N __  (Wagering)
 
Type of religious chant: G R __ __ __ __ I __ N  (Gregorian)

Statuette:  __ __ G __ R I N __  (Figurine)
 
Headache:  __ __ G R __ I N __ (Migraine)

Complaint:  G R I __ __ __ N __ __  (Greivance)

Falcon:  __ __ __ __ G R I N __   (Perigrine)