Drug abuse in pub, for example, at an end (9)
I believe the answer is:
ibuprofen
'drug' is the definition.
(I know that ibuprofen is a type of drug)
'abuse in pub for example at an end' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'pub' is 'bup' which is present in the answer.
an anagram of 'for' is 'rof' which is within the answer.
'an' could be 'i' (Roman numeral for one) and 'i' is found in the answer.
The remaining letters 'en' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for ibuprofen that I've seen before include "Painkiller" , "anaesthetic" , "Drug" , "Anti-inflammatory medicine" .)