Stand for body keeping our people in additional employment (6)
I believe the answer is:
busier
'in additional employment' is the definition.
(having more to do than previously)
'stand for body keeping our people' is the wordplay.
'stand for body' becomes 'bier' (stand a body is laid on at a funeral).
'keeping' means one lot of letters goes inside another.
'our people' becomes 'us' (us refers to 'our' group or people).
'bier' placed around 'us' is 'BUSIER'.
(Other definitions for busier that I've seen before include "Having a great deal more to do" , "More fully engaged in work" , "More active or engaged in work" , "More full of activity" , "More fully engaged or occupied" .)