Trendy top worn by Virginia without justification (7)
I believe the answer is:
invalid
'without justification' is the definition.
I can't judge whether this defines the answer.
'trendy top worn by virginia' is the wordplay.
'trendy' becomes 'in'.
'top' becomes 'lid' (lid is a kind of top).
'worn by' is an insertion indicator (I've seen this in other clues).
'virginia' becomes 'va' (US state abbreviation).
'in'+'lid'='inlid'
'inlid' placed around 'va' is 'INVALID'.
Can you help me to learn more?
(Other definitions for invalid that I've seen before include "Someone unwell" , "Flawed" , "What Bunbury was, permanently" , "Disable" , "Ill person, not acceptable" .)