Called chap over to meet editor (5)
I believe the answer is:
named
'called' is the definition.
('name' can be a synonym of 'call')
'chap over to meet editor' is the wordplay.
'chap' becomes 'man' (I've seen this before**).
'over' says the letters should be written backwards.
'to meet' means one lot of letters go next to another.
'editor' becomes 'ed'.
'man' reversed gives 'nam'.
'nam'+'ed'='NAMED'
(Other definitions for named that I've seen before include "Entitled" , "Handled" , "Identified by appellation" , "Christened" , "Designated" .)