Answer: ell

AnswerCrossword Clue
ELLPipe fitting
ELLLabial opening?
ELLOrwell's last character?
ELLTime will do it, they say
ELL90-degree angle
ELLRoom shape
ELLExtension
ELLPipe shape
ELLAngled annex
ELLTetris shape
ELLCorner shape
ELLBent pipe shape
ELLBuilding annex
ELLBlueprint addition
ELLLength of cloth
ELLHome improvement?
ELLLetter opener?
ELLPlumber's joint
ELLRight-angled bend
ELLBuilding add-on
ella former English unit of length (as for cloth) equal to 45 inches (about 1.14 meters)
ELLPipe joint
ELLBuilding addition
ELLBuilding extension
ELLBuilding wing
ELLConduit bend
ELLRight-angled pipe
ELLWing
ELLWren wing
ELLAdd-on
ELLHouse addition
ELLBlueprint extra
ELLRight angle
ELLWright wing
ELLAddition
ELLAlcove
ELLAnnex
ELLBlueprint feature
ELLBuilding expansion
ELLUnfeathered wing?