Cryptic crossword clue
Allow into International Space Station’s land masses 6

The most common and most likely answer to this crossword clue is the 6 letter word ISLETS

I
S
L
E
T
S


Buddy explains!

The straight part
We know that "A/land masses" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a/land masses = islets.
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 ISLETS mean?

ISLETS noun
  1. A small island
  2. An isolated piece of tissue that has a specific function

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