The most common and most likely answer to this crossword clue is the 7 letter word OCCLUDE
I've seen this crossword clue in Financial Times
O
C
C
L
U
D
E
More clues leading to the result OCCLUDE
- Obstruct commander and law lord entering church
- Climate on vacation changed with cloud cover
- One of these had homophone cut off
- Jam company lifted what’s left of damsons into tip
- Bite on cue – cold pie
- . Arrest the conservative trapped in a cloudburst with the Oriental
- Stop backing company director held in suspicion
- Stop upcoming company getting a hint about the beginning of downtrend
- Stop officer commanding beginning to criticise duel in an unacceptable manner
- Block 0-100 — clued terribly
Buddy explains!

The straight part
We know that "Obstruct" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case obstruct = occlude.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 OCCLUDE mean?
OCCLUDE verb- To obstruct, cover, or otherwise block (an opening, a portion of an image, etc.).
- To absorb, as a gas by a metal.