Moving out in it, teaching (7)
I believe the answer is:
tuition
'teaching' is the definition.
(tuition is a kind of teaching)
'moving out in it' is the wordplay.
'moving' is an anagram indicator.
'out'+'in'+'it'='outinit'
'outinit' with letters rearranged gives 'TUITION'.
(Other definitions for tuition that I've seen before include "practice" , "Training" , "(Individual) instruction" , "Teaching, often one-to-one" , "Schooling" .)