Writer who broke nibs around closing time (5)
I believe the answer is:
ibsen
'writer' is the definition.
(Ibsen is an example)
'broke nibs around closing time' is the wordplay.
'broke' is an anagram indicator.
'around' means one lot of letters goes inside another.
'closing time' becomes 'e' (I can't justify this - if you can you should believe this answer much more).
'nibs' is an anagram of 'ibsn'.
'ibsn' placed around 'e' is 'IBSEN'.
'who' acts as a link.
Can you help me to learn more?
(Other definitions for ibsen that I've seen before include "Norwegian dramatist and poet" , "Is Ben a playwright?" , "foreign author" , ""Doll's House" dramatist" , "famous Norwegian" .)