Get school to raise girl's death (10)
I believe the answer is:
comprehend
'get' is the definition.
(thesaurus)
'school to raise girl's death' is the wordplay.
'school' becomes 'comp' (short for comprehensive school).
'to raise girl' becomes 'reh' (I am not sure about this - if you are sure you should believe this answer much more).
'death' becomes 'end' (synonyms).
'comp'+'reh'+'end'='COMPREHEND'
(Other definitions for comprehend that I've seen before include "Understand" , "Grasp" .)