Pressure reducer (4)
I believe the answer is:
leak
(Other definitions for leak that I've seen before include "(Politically motivated) seepage?" , "Lose water" , "Intentional release of secrets" , "Divulgation" , "Unwanted discharge" .)
I believe the answer is:
leak
(Other definitions for leak that I've seen before include "(Politically motivated) seepage?" , "Lose water" , "Intentional release of secrets" , "Divulgation" , "Unwanted discharge" .)