Answer: stuv

AnswerCrossword Clue
STUV

Sequence before W

STUV

R followers

STUV

Queue following R

STUV
String before W
STUV
Alphabet quartet
STUVR-W linkup
STUVR-W connection
STUVR-W link
STUVR-W hookup
STUVW's predecessors
STUVW's predecessors?
STUVNice little alphabet run
STUVQueue after R
STUVFour after R