Rains blow down on banks of high voltage circuits (4)
I believe the answer is:
hits
'voltage circuits' is the definition.
The definition and answer can be both acts as well as being plural nouns.
Maybe there's a link between them I don't understand?
'rains blow down on banks of high' is the wordplay.
'rains blow down' becomes 'it' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'on' indicates putting letters inside.
'banks of' means to remove the middle letters (the banks are the sides of the word).
'high' becomes 'heights' (synonyms).
'heights' with its centre removed is 'hs'.
'it' going within 'hs' is 'HITS'.
Can you help me to learn more?
(Other definitions for hits that I've seen before include "The sort of strikes" , "Pop successes" , "that please the public?" , "In the 60s these were 'groovy'" , "Raps - successful recordings" .)