Queen separates baubles arranged in a row (8)
I believe the answer is:
squabble
'a row' is the definition.
(I know that squabble is a type of row)
'queen separates baubles arranged' is the wordplay.
'queen' becomes 'Q' (abbreviation for queen in chess).
'separates' is an insertion indicator.
'arranged' indicates anagramming the letters (letters rearranged).
'baubles' anagrammed gives 'suabble'.
'q' placed inside 'suabble' is 'SQUABBLE'.
'in' is the link.
(Other definitions for squabble that I've seen before include "Petty row" , "Argue over petty things" , "Quarrel in petty or noisy way" , "Bicker" , "Quarrel about petty points" .)