Someone too ocncerned with book learning and pet training (6)
I believe the answer is:
pedant
'someone' is the definition.
(pedant is a kind of someone)
'and pet training' is the wordplay.
'training' is an anagram indicator (to train can mean to grow something into a shape).
'and'+'pet'='andpet'
'andpet' anagrammed gives 'PEDANT'.
'too ocncerned with book learning' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for pedant that I've seen before include "Nitpicker" , "Hair-splitter" , "Stickler for minor details" , "One pays undue attention to the petty details" , "One who insists on minor details, may be a conceited know-all" .)