After climbing mountain, Bond gets an assignment (9)
I believe the answer is:
placement
'assignment' is the definition.
(thesaurus)
'after climbing mountain bond' is the wordplay.
'after climbing' shows that the letters should be reversed in order (in a down clue, letters go up).
'mountain' becomes 'alp' (the Alps are a mountain range).
'bond' becomes 'cement' (cement can mean to stick or bond).
'alp' reversed gives 'pla'.
'pla'+'cement'='PLACEMENT'
'gets an' acts as a link.
(Other definitions for placement that I've seen before include "seating for dinner" , "Arrangement" , "location" , "Temporary posting" , "Temporary job for work experience" .)