Child has qualification in various languages as well as Engineering (4)
I believe the answer is:
babe
'child' is the definition.
(I know that babe is a type of child)
'qualification in various languages as well as engineering' is the wordplay.
'qualification in various languages' becomes 'bab' (I can't justify this - if you can you should believe this answer much more).
'as well as' is a charade indicator (letters next to each other).
'engineering' becomes 'e' (abbreviation).
'bab'+'e'='BABE'
'has' acts as a link.
Can you help me to learn more?
(Other definitions for babe that I've seen before include "Darling" , "baby" , "& 3 Down Famous baseball player" , "Girlfriend" , "Term of endearment" .)