Lay on, impose (7)
I believe the answer is:
inflict
I believe this clue is a double definition.
'lay on' is the first definition.
(I've seen this before)
'impose' is the second definition.
(I know that impose can be written as inflict)
(Other definitions for inflict that I've seen before include "Wreak" , "Cause (pain)" , "Impose (painfully) upon" , "Impose something unpleasant, perhaps a wound" , "to visit, unpleasantly" .)