The most common and most likely answer to this crossword clue is the 5 letter word OSAGE
I've seen this crossword clue in The Times
O
S
A
G
E
More clues leading to the result OSAGE
- Language of love used by wise man
- American people who have time for the Oscars?
- Old person showing wisdom, native American
- Love shown by wise man in Siouan language
- Native American, old and wise
- Rowe oddly neglected to include talk about language
- Brave, perhaps, ignoring first bit of medicine?
- American Indian
- Last of Arapaho, wise old American
- Old wise man of Native American tribe
Buddy explains!
The straight part
We know that "Language" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case language = osage.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.