Attitudes sure to develop on the job (8)
I believe the answer is:
postures
'attitudes' is the definition.
(posture is a kind of attitude)
'sure to develop on the job' is the wordplay.
'to develop' indicates an anagram.
'on' is an insertion indicator (as in clothing \'on\' a person).
'the job' becomes 'post' (post is a kind of job**).
'sure' with letters rearranged gives 'ures'.
'ures' placed around 'post' is 'POSTURES'.
(Other definitions for postures that I've seen before include "Strikes attitudes, assumes artificial positions" , "Sour pest produces poses" .)