The most common and most likely answer to this crossword clue is the 6 letter word FAWNED
F
A
W
N
E
D
Buddy explains!
The straight part
We know that "was flattering" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case was flattering = fawned.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 FAWNED mean?
FAWNED verb- To give birth to a fawn.
- To exhibit affection or attempt to please.
- To seek favour by flattery and obsequious behaviour (with on or upon).
- (of a dog) To show devotion or submissiveness by wagging its tail, nuzzling, licking, etc.