The most common and most likely answer to this crossword clue is the 5 plus 6 letter word CURRY FAVOUR
I've seen this crossword clue in Financial Times
C
U
R
R
Y
F
A
V
O
U
R
More clues leading to the result CURRY FAVOUR
- Hot dish suggestion — learner’s left to seek approval
- Suck up taste of vindaloo left abandoned
- Suck up to groom with act of kindness
- Seek to ingratiate, getting left out of the Taste of India
- Ingratiate oneself to groom with act of kindness
- 20 possibly dismissing Liberal toady
- Attempt to ingratiate dog with extremely risky indulgence
- Seek approval for spicy dish left lacking in taste
Buddy explains!
The straight part
We know that "Suck up to" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case suck up to = curry favour.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.