The most common and most likely answer to this crossword clue is the 9 letter word INCREASES
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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 INCREASES mean?
INCREASES noun- An amount by which a quantity is increased.
- For a quantity, the act or process of becoming larger
- Offspring, progeny
- The creation of one or more new stitches; see Increase (knitting).
- (of a quantity, etc.) To become larger or greater.
- To make (a quantity, etc.) larger.
- To multiply by the production of young; to be fertile, fruitful, or prolific.
- To become more nearly full; to show more of the surface; to wax.