The most common and most likely answer to this crossword clue is the 6 letter word PAMPER
I've seen this crossword clue in Financial Times
P
A
M
P
E
R
More clues leading to the result PAMPER
- Jack, a baby
- Girl with salesman turned to see mother
- Spoil marks in exam
- Indulge, putting money in stocks and shares
- Spoil daily accepting money?
- Pet married, beset by confetti?
- Treat indulgently male appearing in The Independent on Sunday ?
- Bringer of news about male baby
- Humour from Matt originally seen in Telegraph?
- Current measure blocking a treat
Buddy explains!

The straight part
We know that "Spoil" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case spoil = pamper.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 PAMPER mean?
PAMPER verb- To treat with excessive care, attention or indulgence.
- To feed luxuriously.