Leader of daily newspaper's inside (5)
I believe the answer is:
chair
'leader' is the definition.
(I know that chair is a type of presiding officer)
'daily newspaper's inside' is the wordplay.
'daily' becomes 'char' (both can mean a cleaner).
'newspaper' becomes 'i' (UK newspaper).
'inside' is an insertion indicator.
'char' placed around 'i' is 'CHAIR'.
'of' acts as a link.
(Other definitions for chair that I've seen before include "Head of a university faculty or department" , "What professor has" , "Single seat" , "Professorship" , "Senior academic post" .)