Yearning to forego last tablet (7)
I believe the answer is:
aspirin
'tablet' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for aspirin that I've seen before include "Analgesic over in Paris" , "Anti-inflammatory drug" , "Sip rain (anag.)" , "Pain-relieving tablet" , "Pain-relief drug" .)