Eastern climatology wrongly linked to origins of elements in books? (12)
I believe the answer is:
etymological
'linked to origins of elements in books?' is the definition.
(etymology is the study of words)
'eastern climatology wrongly' is the wordplay.
'eastern' becomes 'e'.
'wrongly' indicates an anagram.
'climatology' with letters rearranged gives 'tymological'.
'e'+'tymological'='ETYMOLOGICAL'
(Other definitions for etymological that I've seen before include "Relating to word origins" , "Dealing with word origins" .)