What is the crossword answer for the clue: The heart of the matter

GIST - a 4 letter word may be the answer you are looking for!

NITTYGRITTY - a 11 letter word may be the answer you are looking for!

ESSENCE - a 7 letter word may be the answer you are looking for!

NUB - a 3 letter word may be the answer you are looking for!

CRUX - a 4 letter word may be the answer you are looking for!

BRASSTACKS - a 10 letter word may be the answer you are looking for!

The heart of the matter

3 Character Answers:

NUB

4 Character Answers:

CRUX

GIST

7 Character Answers:

ESSENCE

10 Character Answers:

BRASSTACKS

11 Character Answers:

NITTYGRITTY