The most common and most likely answer to this crossword clue is the 6 letter word LEANED
I've seen this crossword clue in The Daily Telegraph
L
E
A
N
E
D
Buddy explains!

The straight part
We know that "Was inclined" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case was inclined = leaned.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 LEANED mean?
LEANED verb- To incline, deviate, or bend, from a vertical position; to be in a position thus inclining or deviating.
- To incline in opinion or desire; to conform in conduct; often with to, toward, etc.
- Followed by against, on, or upon: to rest or rely, for support, comfort, etc.
- To hang outwards.
- To press against.
- To thin out (a fuel-air mixture): to reduce the fuel flow into the mixture so that there is more air or oxygen.
- To conceal.