The most common and most likely answer to this crossword clue is the 10 letter word TUBERCULAR
I've seen this crossword clue in The Times
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More clues leading to the result TUBERCULAR
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The straight part
We know that "related to consumption" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case related to consumption = tubercular.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 TUBERCULAR mean?
TUBERCULAR adjective- Of, pertaining to, or having tuberculosis.
- Relating to or reminiscent of the wheezing sounds associated with the breathing of tuberculosis patients.
- Tuberculate.