The most common and most likely answer to this crossword clue is the 8 letter word MAHARAJA
I've seen this crossword clue in The Daily Telegraph
M
A
H
A
R
A
J
A
More clues leading to the result MAHARAJA
- A drink and a piece of meat brought over for Indian chief?
- Open a joint in retreat for prince
- Old prince somewhat open with an amateur actor getting all upset
- Ruler knocked back a drink with a poor player
- It’s a shock, a bad actor turning up as prince
- A beer a radio operator sent back for prince
- Old lady has a pint to knock back. First she’s going for an Indian
- Princely sort quite open facing a poor actor in turn
- Just a little open, a radio enthusiast backed old Indian ruler
- Ha! A rajma curry for a ruler
Buddy explains!

The straight part
We know that "prince" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case prince = maharaja.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 MAHARAJA mean?
MAHARAJA noun- A Hindu monarch ranking above a raja, an emperor.