Answer: shoreup

AnswerCrossword Clue
SHOREUPReinforce
SHOREUPFortify
SHOREUPBolster
SHOREUPProvide extra support for
SHOREUPBrace, as a wall
SHOREUPSupport, as with props
SHOREUPButtress
SHOREUPStrengthen
SHOREUPSupport with props.
SHOREUPProp.