Think the world of the child, sir he is not normal
I believe the answer is:
cherish
'think' is the definition.
Although both the answer and definition are verbs in their base form, I can't understand how they can define each other.
'the world of the child sir he is not normal' is the wordplay.
I cannot really understand how this works, but
'child' could be 'ch' (abbreviation for child) and 'ch' is found in the answer.
an anagram of 'sir' is 'ris' which is within the answer.
The remaining letters 'eh' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for cherish that I've seen before include "Protect and care for lovingly" , "Foster" , "Love" , "Nurse" , "Hold dear -- he's rich (anag)" .)