Union, worried about consequence, makes insinuation (8)
I believe the answer is:
innuendo
'insinuation' is the definition.
(I know that insinuation can be written as innuendo)
'union worried about consequence' is the wordplay.
'worried' indicates an anagram.
'about' is an insertion indicator.
'consequence' becomes 'end' (I've seen this in another clue).
'union' with letters rearranged gives 'innuo'.
'innuo' placed around 'end' is 'INNUENDO'.
'makes' acts as a link.
(Other definitions for innuendo that I've seen before include "Indirect implication" , "suggestive remarks" , "Indirect or subtle reference" , "hint" , "Suggestiveness" .)