Overreact when volume turned up close to one (5)
I believe the answer is:
emote
'overreact' is the definition.
Both the definition and answer are verbs in their base form.
Maybe you can see a link between them that I can't see?
'volume turned up close to one' is the wordplay.
'volume' becomes 'tome' (a tome is a large or heavy book).
'turned up' says the letters should be written in reverse.
'close to' indicates one should take the final letters (the close/ending of).
The last letter of 'one' is 'e'.
'tome' reversed gives 'emot'.
'emot'+'e'='EMOTE'
'when' acts as a link.
Can you help me to learn more?
(Other definitions for emote that I've seen before include "give excessive show of feelings" , "Express over-the-top feelings" , "Openly show feelings" , "Show strong feelings" , "Exaggerate one's feelings" .)