The most common and most likely answer to this crossword clue is the 11 letter word CONTEMPLATE
I've seen this crossword clue in Financial Times
C
O
N
T
E
M
P
L
A
T
E
More clues leading to the result CONTEMPLATE
- Prisoner given a short time in church to reflect
- Look carefully at what makes a typical Tory?
- Think to study model
- Think about complete tan when swimming
- Think about opposing stand-in worker not arriving on time?
- One getting time with PA behind schedule to think
- Think about Tory blueprint
- Chapter on model may make one think
- Ponder about working model
- Entertain model after do
Buddy explains!

The straight part
We know that "think" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case think = contemplate.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 CONTEMPLATE mean?
CONTEMPLATE verb- To look at on all sides or in all its aspects; to view or consider with continued attention; to regard with deliberate care; to meditate on; to study, ponder, or consider.
- To consider as a possibility.