The most common and most likely answer to this crossword clue is the 4 plus 5 letter word SPOT CHECK
I've seen this crossword clue in Independent
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More clues leading to the result SPOT CHECK
Buddy explains!

The straight part
We know that "Random inspection" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case random inspection = spot check.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 SPOT CHECK mean?
SPOT CHECK noun- A cursory inspection or examination or the inspection or examination of a sample of something.
- To inspect or examine briefly, or by sampling.