Carol turned shade of pink (5)
I believe the answer is:
coral
'shade of pink' is the definition.
(I've seen this before)
'carol turned' is the wordplay.
'turned' indicates an anagram.
'carol' anagrammed gives 'CORAL'.
(Other definitions for coral that I've seen before include "Creature building reef" , "Material of many Pacific islands." , "marine life form" , "Reef-forming sea life" , "Shade of pink" .)