Goan tavern has aid delivered (6)
I believe the answer is:
indian
'delivered' is the definition.
The answer and definition are different parts of speech. However, adjectives and past participle verbs can occasionally define each other.
'goan tavern has aid' is the wordplay.
I cannot really see how this works, but
an anagram of 'aid' is 'dia' which is located in the answer.
'tavern' could be 'inn' (I've seen this before) and 'inn' is located in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for indian that I've seen before include "Of a subcontinent in Asia" , "American aborigine" , "This summer may happen in late autumn" , "Relating to Asian subcontinent" , "IDA inn provided for this notionality" .)