Pointed thanks for each editor (7)
I believe the answer is:
tapered
'pointed' is the definition.
('taper' can be a synonym of 'point')
'thanks for each editor' is the wordplay.
'thanks' becomes 'ta' (UK informal version of 'thank you').
'for each' becomes 'per' (I've seen this in another clue).
'editor' becomes 'ed' (abbreviation).
'ta'+'per'+'ed'='TAPERED'
(Other definitions for tapered that I've seen before include "Narrowing towards one end" , "Predate (anag)" , "came to the point" , "Narrowing to a point" , "Getting smaller towards the end" .)