In pouring that ink back, draw closely together (4)
I believe the answer is:
knit
'in pouring that ink back draw closely together' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'in pouring that ink back' is the wordplay.
'in pouring' becomes 't' (I can't justify this - if you can you should give a lot more credence to this answer).
'that ink' becomes 'ink'.
'back' says the letters should be written in reverse.
't'+'ink'='tink'
'tink' backwards is 'KNIT'.
Can you help me to learn more?
(Other definitions for knit that I've seen before include "(Bone) heal; contract (brows)" , "Unite together" , "Become joined" , "Make a sweater, maybe" , "become closer" .)