Switching off, making room for love and silence (5,4)
I believe the answer is:
shout down
'silence' is the definition.
(I know that shout down is a more specific form of the action silence)
'switching off making room for love' is the wordplay.
'switching off' becomes 'shut down' (shutting down a machine).
'making room for' means one lot of letters goes inside another (some letters make room for others to come in).
'love' becomes 'o' (love means zero in tennis).
'shutdown' going around 'o' is 'SHOUT DOWN'.
'and' is the link.
(Another definition for shout down that I've seen is " Wound host in order to silence talker".)