The most common and most likely answer to this crossword clue is the 7 letter word APPLAUD
I've seen this crossword clue in The Daily Telegraph
A
P
P
L
A
U
D
More clues leading to the result APPLAUD
- Acclaim of the French: a record by old man climbing
- Indicate approval of a Parish Priest and Archbishop
- Clap a very quiet youth outside university
- Show approval of a piano duet attracting praise
- Praise a very quiet lad welcoming university
- A couple of pages to praise and praise
- Acclaim a former archbishop keeping very quiet
- Praise — a very faint praise
- Cheer very quietly during a double somersault
- Cheer double returns on program
Buddy explains!

The straight part
We know that "praise" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case praise = applaud.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 APPLAUD mean?
APPLAUD noun- Applause; applauding.
- Plaudit.
- To express approval (of something) by clapping the hands.
- To praise, or express approval for something or someone.