“DIRLING” is a valid word. — 9 points Scrabble

ridingthe sport of siting on the back of a horse while controlling its movements
idlinghaving no employment
rilingcause annoyance in; disturb, especially by minor irritations
ridgila colt with undescended testicles

grindan insignificant student who is ridiculed as being affected or boringly studious
rigidincapable of or resistant to bending
indrilarge short-tailed lemur of Madagascar having thick silky fur in black and white and fawn
iring

girla young woman
ringa characteristic sound
dinga ringing sound
grida pattern of regularly spaced horizontal and vertical lines
lingwater chestnut whose spiny fruit has two rather than 4 prongs
grina facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement
rindthe natural outer covering of food (usually removed before eating)
gilda formal association of people with similar interests
girdprepare oneself for a military confrontation
liri
irid
dirl
girn
nidia central point or locus of an infection in an organism

ridrelieve from
digthe site of an archeological exploration
linUnited States sculptor and architect whose public works include the memorial to veterans of the Vietnam War in Washington (born in 1959)
ginstrong liquor flavored with juniper berries
riggear (including necessary machinery) for a particular enterprise
lideither of two folds of skin that can be moved to cover or open the eye
rin
dina loud harsh or strident noise
nila quantity of no importance
gid

ina unit of length equal to one twelfth of a foot
ida state in the Rocky Mountains
lia soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals

DIRLING