Educate child about toilets outside (6)
I believe the answer is:
school
'educate' is the definition.
('school' can be a synonym of 'educate')
'child about toilets outside' is the wordplay.
'child' becomes 'ch'.
'about' shows that the letters should be reversed in order.
'toilets' becomes 'loos' (loo is a kind of toilet).
'outside' indicates putting letters inside.
'loos' in reverse letter order is 'sool'.
'ch' placed into 'sool' is 'SCHOOL'.
(Other definitions for school that I've seen before include "Place of learning" , "Group of sea creatures" , "See 7" , "College" , "Where one teaches" .)