The most common and most likely answer to this crossword clue is the 8 letter word EDUCATED
I've seen this crossword clue in The Guardian
E
D
U
C
A
T
E
D
More clues leading to the result EDUCATED
- English coin of yesteryear, editor learned
- Learned river flows back, covering ancient coin
- Learned European eccentric cut dead
- Informed coin will be found in river flowing west
- Learned about due date after bothering nurses
- Balls, internally, no longer tender, he finally learned
- Knowledgeable editor supports European coin
- Taught to be literate
- Learned of old money found in river from the east
- Having been taught well, cadet due for promotion
Buddy explains!

The straight part
We know that "Taught/literate" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case taught/literate = educated.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 EDUCATED mean?
EDUCATED verb- To instruct or train
- Having attained a level of higher education, such as a college degree.
- Based on relevant information.