In a way, nothing for me to make an exhibition about (7)
I believe the answer is:
somehow
'in a way' is the definition.
(I've seen this before)
'nothing for me to make an exhibition about' is the wordplay.
'nothing' becomes 'O' (looks like zero - 0).
'for' means one lot of letters go next to another (I've seen this in other clues).
'to make' indicates an anagram.
'an exhibition' becomes 'show' (I've seen this in other clues).
'about' means one lot of letters goes inside another.
'o' after 'me' is 'meo'.
'meo' is an anagram of 'ome'.
'ome' going within 'show' is 'SOMEHOW'.
(Other definitions for somehow that I've seen before include "For some unspecified reason" , "In a way not yet specified" , "In an unspecified way" , "By unspecified means" , "By hook or by crook" .)