Close to home call about nothing unusual (5)
I believe the answer is:
local
'close to home' is the definition.
(I've seen this in another clue)
'call about nothing unusual' is the wordplay.
'about' means one lot of letters go next to another.
'nothing' becomes 'O' (looks like zero - 0).
'unusual' indicates anagramming the letters.
'call' after 'o' is 'ocall'.
'ocall' is an anagram of 'LOCAL'.
(Other definitions for local that I've seen before include "Your friendly neighbourhood pub" , "Pub - of a particular area" , "Neighbourhood pub or resident" , "Relating to the neighbourhood" , "hearing" .)