Include Charlie, replacing semi-pro (8)
I believe the answer is:
comprise
'include' is the definition.
(comprising is a kind of including)
'charlie replacing semi-pro' is the wordplay.
'charlie' becomes 'c' (phonetic alphabet: alpha, bravo, charlie etc.).
'replacing' indicates an anagram (placing again).
'semi'+'pro'='semipro'
'semipro' is an anagram of 'omprise'.
'c'+'omprise'='COMPRISE'
(Other definitions for comprise that I've seen before include "Be composed of" , "Consist of" , "Include" .)