The most common and most likely answer to this crossword clue is the 6 letter word RESEAL
I've seen this crossword clue in Financial Times
R
E
S
E
A
L
More clues leading to the result RESEAL
- True about first half of semi being close again
- Once more, close in on marine predator
- Drew skinned aquatic mammal in close up again
- Rare shot of a river mammal in close-up again
- One having been blown away, realise winds close again
- Extremely reclusive mammal is close again
- Wrapped in material, case of Soave shut up again
Buddy explains!
The straight part
We know that "close up again" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case close up again = reseal.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 RESEAL mean?
RESEAL verb- To seal (something) again (in any sense of "apply a seal to").