Repository of many an obscure poet (5)
I believe the answer is:
depot
'repository' is the definition.
(I know that depot is a type of repository)
'many an obscure poet' is the wordplay.
'many' becomes 'd'.
'an obscure' indicates an anagram.
'poet' with letters rearranged gives 'epot'.
'd'+'epot'='DEPOT'
'of' acts as a link.
(Other definitions for depot that I've seen before include "Supply base" , "Storage base" , "Toped (anag.)" , "Headquarters - storehouse" , "Store for large quantities" .)