Possible Clues:

• Quality of excessive innocence or simplicity
• State of innocence or simplicity (7)
• Inexperience
• Navy tie shows lack of sophistication
• Quality of excessive simplicity or innocence
• Lack of sophistication or experience
• The curious yen Vita had for simplicity
• Green viewpoint? One old soldier enters vote against
• Navy tie? (anag)
• Unusually vain, yet showing lack of sophistication