Sack soldiers and get first responders (7)
I believe the answer is:
firemen
'first responders' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps you can see a link between them that I don't see?
'sack soldiers' is the wordplay.
'sack' becomes 'fire' (both can mean to dismiss from a job).
'soldiers' becomes 'men' (men can mean a group of soldiers).
'fire'+'men'='FIREMEN'
'and get' acts as a link.
Can you help me to learn more?
(Other definitions for firemen that I've seen before include "Hose wielder" , "Stokers" , "They fight conflagrations" , "Their job is to extinguish conflagrations" .)