Guide English class absorbing chapter (6)
I believe the answer is:
escort
'guide' is the definition.
(I've seen this before)
'english class absorbing chapter' is the wordplay.
'english' becomes 'e' (abbreviation).
'class' becomes 'sort' ('sort' can be a synonym of 'class').
'absorbing' means one lot of letters goes inside another.
'chapter' becomes 'c'.
'sort' enclosing 'c' is 'scort'.
'e'+'scort'='ESCORT'
(Other definitions for escort that I've seen before include "Social companion or military guard" , "Companion (perhaps paid)" , "Custodian" , "Bodyguard" , "Business providing companions for an evening out" .)