It’s for aches and pains, perhaps, taking in the tax people (7)
I believe the answer is:
aspirin
'it's for aches' is the definition.
I can't tell whether this defines the answer.
'pains perhaps taking in the tax people' is the wordplay.
'perhaps' indicates an anagram.
'taking in' indicates putting letters inside.
'the tax people' becomes 'ir'.
'pains' is an anagram of 'aspin'.
'aspin' enclosing 'ir' is 'ASPIRIN'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for aspirin that I've seen before include "Common pain tablet" , "Anodyne" , "Analgesic compound" , "number" , "answer to pain?" .)