Thick edition that's bound (5)
I believe the answer is:
fated
'bound' is the definition.
('fated' can be a synonym of 'bound')
'thick edition' is the wordplay.
'thick' becomes 'fat' ('fat' can be similar in meaning to 'thick').
'edition' becomes 'ed'.
'fat'+'ed'='FATED'
'that's' is the link.
(Other definitions for fated that I've seen before include "Destined, foreordained (5)" , "Destined - inevitable" , "Suffering a lot" , "Predestined" , "Doomed or destined" .)