The most common and most likely answer to this crossword clue is the 11 letter word COROLLARIES
I've seen this crossword clue in The Daily Telegraph
C
O
R
O
L
L
A
R
I
E
S
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The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does COROLLARIES mean?
COROLLARIES noun- Something given beyond what is actually due; something added or superfluous.
- Something which occurs a fortiori, as a result of another effort without significant additional effort.
- A proposition which follows easily from the proof of another proposition.