It's not good enough or satisfactory for organisation starting off (10)
I believe the answer is:
unsuitable
'enough or satisfactory for organisation starting off' is the definition.
I can't tell whether this defines the answer.
'it's not good' is the wordplay.
'it's not' becomes 'un' (I've seen this in other clues**).
'good' becomes 'suitable' ('suitable' can be similar in meaning to 'good').
'un'+'suitable'='UNSUITABLE'
Can you help me to learn more?
(Other definitions for unsuitable that I've seen before include "Not appropriate" , "Inappropriate" , "Not fitting" .)