Paint a toad badly and make an adjustment (10)
I believe the answer is:
adaptation
'adjustment' is the definition.
(I know that adaptation is a type of adjustment)
'paint a toad badly' is the wordplay.
'badly' indicates anagramming the letters (letters in the wrong order).
'paint'+'a'+'toad'='paintatoad'
'paintatoad' with letters rearranged gives 'ADAPTATION'.
'and make an' is the link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for adaptation that I've seen before include "screen version?" , "to do with evolution" , "Adjustment" , "change" , "Version for TV of a feature" .)