Score from fashionable old pen-pusher (8)
I believe the answer is:
inscribe
'score' is the definition.
(thesaurus)
'fashionable old pen-pusher' is the wordplay.
'fashionable' becomes 'in' (in can mean fashionable or trendy).
'old pen-pusher' becomes 'scribe' (someone copying documents by hand).
'in'+'scribe'='INSCRIBE'
'from' is the link.
(Other definitions for inscribe that I've seen before include "Write or carve on a surface" , "Put dedication into" , "Engrave or write upon" , "Engrave; enter (name in list)" , "Write; etch" .)