Fine vessel for all to see, back in perfect state (6)
I believe the answer is:
utopia
'perfect state' is the definition.
(I've seen this before)
'fine vessel for all to see back' is the wordplay.
'fine' becomes 'ai' (I've seen this in other clues).
'vessel' becomes 'pot' (pot is a kind of vessel**).
'for all to see' becomes 'u' (universal dvd certificate).
'back' is a reversal indicator.
'ai'+'pot'+'u'='aipotu'
'aipotu' reversed gives 'UTOPIA'.
'in' acts as a link.
(Other definitions for utopia that I've seen before include "Perfect world?" , "work in Latin" , "Thomas More's favourite place" , "Thomas More's ideal state" , "Wonderful place" .)