Temporarily stopping individuals staggering from bars

'temporarily stopping individuals' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'staggering from bars' is the wordplay.
I cannot quite understand how this works, but
'staggering' could be 'stumbling' ('stumbling' can be a synonym of 'staggering') and 'stumbling' is located in the answer.
'bars' could be 'blocks' ('block' can be a synonym of 'bar') and 'blocks' is present in the answer.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?