Liked friend of Dorothy receiving fine (4,2)
I believe the answer is:
took to
'liked friend' is the definition.
The definition and answer can be both to do with human feelings as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
'dorothy receiving fine' is the wordplay.
'dorothy' becomes 'toto' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'receiving' is an insertion indicator.
'fine' becomes 'ok' (synonyms).
'toto' placed around 'ok' is 'TOOK TO'.
'of' is the link.
Can you help me to learn more?
(Another definition for took to that I've seen is " Fancied".)