Answer: controlling

AnswerCrossword Clue
CONTROLLINGOn top of
controlling(of a drug) Restricted by law with respect to use and possession
controllingCONTROL, to exercise authority over, also CONTROUL
controllingLimit the level, intensity, or numbers of
controllingTake into account (an extraneous factor that might affect results) when performing an experiment
controllingRemain calm and reasonable despite provocation
controllingMaintain influence or authority over
controllingRegulate (a mechanical or scientific process)
controllingCheck; verify
controllingDetermine the behavior or supervise the running of