Test about one verse of little importance (7)
I believe the answer is:
trivial
'of little importance' is the definition.
(I've seen this before)
'test about one verse' is the wordplay.
'test' becomes 'trial' (synonyms).
'about' is an insertion indicator.
'one' becomes 'i' (Roman numeral).
'verse' becomes 'v'.
'i'+'v'='iv'
'trial' going around 'iv' is 'TRIVIAL'.
(Other definitions for trivial that I've seen before include "Meaningless" , "Trifling" , "Quite unimportant and paltry" , "Of little value" , "not significant" .)