The most common and most likely answer to this crossword clue is the 7 letter word SWANSON
I've seen this crossword clue in Independent
S
W
A
N
S
O
N
More clues leading to the result SWANSON
- Matchmaker finding boy for Gloria
- Starts to search Wikipedia to get answer about old film star
- Gloria, say, as final vocal offering inadequate
- Finish off final performance for old actress
- Actress of yesteryear cut short final appearance
- Small, pale child became a film star
- Final performance, almost, for film star
- Sunset Boulevard star's detailed final performance
- Frozen food brand's last-ditch effort cut short
- Classic frozen-food company's ultimate work left unfinished
Buddy explains!

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.