Transported, being soundly wrapped (4)
I believe the answer is:
rapt
'transported' is the definition.
(I've seen this before)
'soundly wrapped' is the wordplay.
'soundly' shows a homophone (sound like).
'wrapped' sounds like 'RAPT'.
'being' acts as a link.
(Other definitions for rapt that I've seen before include "Enchanted in part" , "Ecstatic - engrossed" , "Delighted" , "Fully absorbed" , "Ecstatic in part" .)