Lots of aged switches and controls (10)
I believe the answer is:
floodgates
'controls' is the definition.
(floodgate is a kind of control)
'lots of aged switches' is the wordplay.
'switches' is an anagram indicator (I've seen 'switching' mean this).
'lots'+'of'+'aged'='lotsofaged'
'lotsofaged' anagrammed gives 'FLOODGATES'.
'and' is the link.
(Other definitions for floodgates that I've seen before include "Sluices" , "barriers to hold back water" .)