The most common and most likely answer to this crossword clue is the 7 letter word FISTFUL
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Buddy explains!

The straight part
We know that "‘what one can get hold of" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ‘what one can get hold of = fistful.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 FISTFUL mean?
FISTFUL noun- The amount that can be held in a closed fist
- A blow with the fist.