Wrongly names scab shortly entering factories (8)

'wrongly names' is the definition.
The definition and answer can be both to do with communicating as well as being verbs in their -s form.
Perhaps there's an association between them I don't understand?

'scab shortly entering factories' is the wordplay.
'shortly' means to remove the last letter.
'entering' indicates putting letters inside.
'factories' becomes 'mills' ('mill' can be a synonym of 'factory').
'scab' with its final letter removed is 'sca'.
'sca' put into 'mills' is 'MISCALLS'.

Can you help me to learn more?