More in another edition (5)
I believe the answer is:
extra
I believe this clue is a triple definition!
'more' is the first definition.
(I've seen this in other clues)
'in' acts as a link.
'another' is the second definition.
(I've seen this before)
'edition' is the third definition.
(I have seen 'Special edition ' mean 'extra' so perhaps 'edition' could also mean 'extra')
(Other definitions for extra that I've seen before include "Bonus; supplement" , "on top" , "one added to the score" , "Exceptionally" , "Score not made by 34 [CRICKETER]" .)