The most common and most likely answer to this crossword clue is the 6 letter word CLINCH
I've seen this crossword clue in The Guardian
C
L
I
N
C
H
More clues leading to the result CLINCH
- Stroll around lake and land
- Embrace easy task, accepting pounds
- Seize piece of cake with a spot of lemon filling
- Secure fifty picnic hampers
- Settle for about 50″
- Secure simple job covering line
- Picnic invaded by large seal
- Decide length, cutting piece of cake
- Confirm chlorine measurement
- Twelve and a half foot seal
Buddy explains!

The straight part
We know that "land" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case land = clinch.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 CLINCH mean?
CLINCH noun- Any of several fastenings.
- The act or process of holding fast; that which serves to hold fast; a grip or grasp.
- A pun.
- A hitch or bend by which a rope is made fast to the ring of an anchor, or the breeching of a ship's gun to the ringbolts.
- A passionate embrace.
- In combat sports, the act of one or both fighters holding onto the other to prevent being hit or engage in standup grappling.
- To clasp; to interlock.
- To make certain; to finalize.
- To fasten securely or permanently.
- To bend and hammer the point of (a nail) so it cannot be removed.
- To embrace passionately.
- To hold firmly; to clench.
- To set closely together; to close tightly.