The most common and most likely answer to this crossword clue is the 5 plus 4 letter word STOOD FAST
I've seen this crossword clue in The Daily Telegraph
S
T
O
O
D
F
A
S
T
Buddy explains!
The straight part
We know that "Got quickly to one’s feet /or didn’t make a move" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case got quickly to one’s feet /or didn’t make a move = stood fast.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.