The most common and most likely answer to this crossword clue is the 8 letter word CHECKING
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More clues leading to the result CHECKING
Buddy explains!

The straight part
We know that "see 23A" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case see 23a = checking.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 CHECKING mean?
CHECKING verb- To inspect; to examine.
- To verify the accuracy of a text or translation, usually making some corrections (proofread) or many (copyedit).
- (often used with "off") To mark items on a list (with a checkmark or by crossing them out) that have been chosen for keeping or removal or that have been dealt with (for example, completed or verified as correct or satisfactory).
- To control, limit, or halt.
- To verify or compare with a source of information.
- To leave in safekeeping.
- To leave with a shipping agent for shipping.
- To pass or bounce the ball to an opponent from behind the three-point line and have the opponent pass or bounce it back to start play.
- To disrupt another player with the stick or body to obtain possession of the ball or puck.
- To remain in a hand without betting. Only legal if no one has yet bet.
- To make a move which puts an adversary's king in check; to put in check.
- To chide, rebuke, or reprove.
- To slack or ease off, as a brace which is too stiffly extended.
- To crack or gape open, as wood in drying; or to crack in small checks, as varnish, paint, etc.
- To make checks or chinks in; to cause to crack.
- To make a stop; to pause; with at.
- To clash or interfere.
- To act as a curb or restraint.
- To turn, when in pursuit of proper game, and fly after other birds.
- To mark with a check pattern.
- The act of physically keeping an opposing player in check.
- A checking account.