The most common and most likely answer to this crossword clue is the 8 letter word MEASLIER
I've seen this crossword clue in The Daily Telegraph
M
E
A
S
L
I
E
R
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The straight part
We know that "more contemptible" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case more contemptible = measlier.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 MEASLIER mean?
MEASLIER adjective- Particularly of pigs or pork: infected with larval tapeworms or trichinae (parasitic roundworms).
- Of a person: infected with measles.
- Small (especially contemptibly small) in amount.