Complete; undamaged (6)
I believe the answer is:
intact
This clue is a double definition.
'complete' is the first definition.
(intact can mean complete or undamaged)
'undamaged' is the second definition.
(I've seen this in another clue)
(Other definitions for intact that I've seen before include "Undiminished" , "Undamaged, unimpaired" , "Whole and complete" , "Undamaged, not broken" , "Not damaged in any way" .)