Reorganisation of Tooting, not good as a whole (2,4)
I believe the answer is:
in toto
'as a whole' is the definition.
('in toto' can be a synonym of 'as a whole')
'reorganisation of tooting not good' is the wordplay.
'reorganisation of' is an anagram indicator (I've seen this in other clues).
'not' suggests deleting specific letters.
'good' becomes 'g' (abbreviation).
'tooting' with 'g' taken out is 'tootin'.
'tootin' is an anagram of 'IN TOTO'.
(Other definitions for in toto that I've seen before include "overall" , "Completely - entirely (Latin)" , "All told" , "In entirety" , "Tranquillity" .)