The most common and most likely answer to this crossword clue is the 7 letter word GALUMPH
I've seen this crossword clue in The Times
G
A
L
U
M
P
H
More clues leading to the result GALUMPH
- Move awkwardly as lass gaining speed outside university
- Girl's beginning to use speed in run, though clumsily
- Bound to be slow to put up universal rate
- Noisily get round girl with sex appeal
- Appear clumsy in golf with a wedge, ending in bush
- Move clumsily, having a lump hampering bandages
- Bound to be hot below opening either side of chimney
- Witch to go around impeded by swelling, making move awkwardly
- Chunk saved by crone served up for tramp
- Tramp feeding gobbet to upset crone
Buddy explains!

The straight part
We know that "run, though clumsily" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case run, though clumsily = galumph.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 GALUMPH mean?
GALUMPH verb- To move heavily and clumsily, or with a sense of prancing and triumph.