Crossword Genius

Try to block drop of rain with plug (6)

Ross

I believe the answer is:

spigot

I'm a little stuck... Click here to teach me more about this clue!

'plug' is the definition.
(I know that spigot is a type of plug)

'try to block drop of rain' is the wordplay.
I cannot quite understand how this works, but
'try' could be 'go' (both can mean an attempt) and 'go' is located in the answer.
'rain' could be 'spit' (spitting is a kind of raining) and 'spit' is present in the leftover letters.
No letters remain.
This explanation may well be incorrect...

'with' acts as a link.

Can you help me to learn more?

(Other definitions for spigot that I've seen before include "Peg to control the flow of a tap" , "Small plug for cask" , "Vent hole peg - US tap" , "One stops" , "Cask stopper" .)

I've seen this clue in The Guardian.
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