Bringing up fruit gums, initially (7)
I believe the answer is:
raising
'bringing up' is the definition.
(raising is a kind of bringing up)
'fruit gums initially' is the wordplay.
'fruit' becomes 'raisin' (raisin is a kind of fruit).
'gums initially' becomes 'g' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'raisin'+'g'='RAISING'
Can you help me to learn more?
(Other definitions for raising that I've seen before include "Promoting (in rank)" , "Growing" , "Bringing up" , "Lifting" , "Elevating" .)