I make a mark in logo (5)
I believe the answer is:
ident
'logo' is the definition.
(an ident is a logo used in TV broadcasting)
'i make a mark' is the wordplay.
'make a mark' becomes 'dent' (create a dent in something).
'i'+'dent'='IDENT'
'in' is the link.
(Other definitions for ident that I've seen before include "image on screen" , "Broadcast indicating TV channel" , "short film sequence" , "Short BBC sequence" , "not much, which shows your station" .)