Answer:

unstop

AnswerCrossword Clue
UNSTOPRemove the cork from
UNSTOPUse Liquid-Plumr, say
UNSTOPLet drain, as a sink
UNSTOPOpen, as a dam
UNSTOPClear, as a drain
UNSTOPClear of clogs
UNSTOPOpen.
UNSTOPFree from obstruction.
UNSTOPRemove a plug
UNSTOPClear up a clog
UNSTOPOpen
UNSTOPClear
UNSTOPRemove a clog from
UNSTOPPull a cork out of
UNSTOPUse a plunger
UNSTOPRemove the cap
UNSTOPClear the drain
UNSTOPClear a clog
UNSTOPPull a cork from