Answer: mortared

AnswerCrossword Clue
MORTAREDPlastered.
MORTAREDFired shells on enemy trenches
MORTAREDPlastered walls, in a way
MORTAREDMade fast, as bricks
mortaredAttack or bombard with shells fired from a mortar
mortaredMORTAR, to bind with a type of cement