Dior abandoned land for consecration (10)
I believe the answer is:
ordination
'consecration' is the definition.
(thesaurus)
'dior abandoned land' is the wordplay.
'abandoned' indicates an anagram (the original order is abandoned).
'land' becomes 'nation' (synonyms).
'dior' is an anagram of 'ordi'.
'ordi'+'nation'='ORDINATION'
'for' is the link.
(Other definitions for ordination that I've seen before include "Conferral of holy orders" , "admission to ministry" , "Solemn moment for a Christian" , "Admission to holy orders" , "church ceremony" .)