Clue: Special treatment year after senior citizen admits commotion (10)
Answer: OPOTHERAPY
Explanation: Definition: Special treatment 
**Y** (year) *after ***OAP **(old aged pensioner, therefore "senior citizen") *admits ***POTHER **("commotion") 
"Opotherapy" *is another word for organotherapy (the treatment of disease with extracts of animal endocrine glands)