The most common and most likely answer to this crossword clue is the 7 letter word GLOWING
I've seen this crossword clue in The Daily Telegraph
G
L
O
W
I
N
G
Buddy explains!
The straight part
We know that "full of praise" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case full of praise = glowing.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 GLOWING mean?
GLOWING verb- To give off light from heat or to emit light as if heated.
- To radiate some emotional quality like light.
- To gaze especially passionately at something.
- To radiate thermal heat.
- To shine brightly and steadily.
- To make hot; to flush.
- To feel hot; to have a burning sensation, as of the skin, from friction, exercise, etc.; to burn.
- The action of the verb glow.
- That glows or glow.
- Full of praise.