Few bolder twists in the plot of The Black Tulip? (9)
I believe the answer is:
flowerbed
'the plot of the black tulip?' is the definition.
(plot of soil that containing flowers)
'few bolder twists' is the wordplay.
'twists' is an anagram indicator (I've seen 'twisting' mean this).
'few'+'bolder'='fewbolder'
'fewbolder' anagrammed gives 'FLOWERBED'.
'in' is the link.
(Other definitions for flowerbed that I've seen before include "Display of lilies" , "Garden plot" , "Section of garden devoted to horticulture" .)