Some of sect in kingdom's uprising closely unite (4)
I believe the answer is:
knit
'closely unite' is the definition.
'knit' can be an answer for 'unite' (I've seen this in another clue). I am unsure of the 'closely' bit.
'some of sect in kingdom's uprising' is the wordplay.
'some of' indicates a hidden word.
'uprising' says the letters should be written in reverse.
'tink' can be found hidden inside 'sect in kingdoms'.
'tink' reversed gives 'KNIT'.
Can you help me to learn more?
(Other definitions for knit that I've seen before include "Work with wool and needles" , "Form by looping and entwining wool etc" , "Make something with wool and needles" , "tie" , "Mend" .)