The most common and most likely answer to this crossword clue is the 7 letter word REFLECT
I've seen this crossword clue in The Guardian
R
E
F
L
E
C
T
More clues leading to the result REFLECT
- Umpire, about to block service hitting net, gets to ponder
- Quietly consider when judge allowed to detain criminal, originally
- Soldiers felt bad about source of crack in mirror
- Ponder mirror
- Female the French court, following about as muse
- Consider judge academic? Not half
- Think about fellow-Celt in trouble
- Think about reducing a bit, get tense
- Contemplate display
- Female the French court following about as muse?
Buddy explains!

The straight part
We know that "Quietly consider" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case quietly consider = reflect.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 REFLECT mean?
REFLECT verb- To bend back (light, etc.) from a surface.
- To be bent back (light, etc.) from a surface.
- To mirror, or show the image of something.
- To be mirrored.
- To agree with; to closely follow.
- To give evidence of someone's or something's character etc.
- To think seriously; to ponder or consider.