European expected to keep pet in school (7)
I believe the answer is:
educate
'school' is the definition.
('educate' can be a synonym of 'school')
'european expected to keep pet' is the wordplay.
'european' becomes 'e' (abbreviation e.g. EU).
'expected' becomes 'due' (I've seen this before).
'to keep' is an insertion indicator.
'pet' becomes 'cat' (I have seen 'Common pet ' mean 'cat' so perhaps 'pet' could also mean 'cat'**).
'due' going around 'cat' is 'ducate'.
'e'+'ducate'='EDUCATE'
'in' acts as a link.
(Other definitions for educate that I've seen before include "Enlighten" , "Impart knowledge" , "Bring up" , "Train, teach" , "Teach - instruct" .)