Answer:

sling

Answer	Crossword Clue
SLING	Singapore ...
SLING	See 37-Across
SLING	Cast replacement

SLING	It might be supporting a cast
SLING	Rock launcher
SLING	David's weapon
SLING	David's weapon against Goliath
SLING	Primitive weapon
SLING	Definitely no arm-twister
SLING	Arm support
SLING	Armrest?

SLING	Cast supporter?
SLING	Hoisting device
SLING	Broken arm holder
SLING	Rifle strap
SLING	Missile launcher
SLING	Gin drink
SLING	First-aid contrivance
SLING	Cast