The most common and most likely answer to this crossword clue is the 6 letter word OBLIGE
I've seen this crossword clue in The Guardian
O
B
L
I
G
E
More clues leading to the result OBLIGE
- Do a favour for unnamed peer, investing one grand
- Over 50 in substantial English force
- Force ex-pupil to tell an untruth about George
- Make former pupil tell story about the origin of greed
- Do a favour and repair big ’ole
- Make the first pair of obsolescent lichens germinate
- Compel to help
- Accommodate force
- Boil half of eggs another way, please
- Help old boy cross, road’s beginning to heave
Buddy explains!
The straight part
We know that "force" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case force = oblige.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 OBLIGE mean?
OBLIGE verb- To constrain someone by force or by social, moral or legal means.
- To do (someone) a service or favour (hence, originally, creating an obligation).
- To be indebted to someone.