Get back temporary relief when president finally usurps power (8)

I believe the answer is:

retrieve

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

'get back' is the definition.
(get back can mean to retrieve or recover)

I can't explain the rest of the clue.

(Other definitions for retrieve that I've seen before include "Get or bring back something" , "Search for and discover" , "Rescue" , "Get back or fetch" , "Recover" .)

I've seen this clue in The Hindu.

Want a hint initially instead of a full solution? Install my app