The most common and most likely answer to this crossword clue is the 6 letter word AILING
A
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L
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G
More clues leading to the result AILING
- Unwell, not succeeding without leader
- Weakness with fellow off sick
- Having sex without affection ultimately is sickening
- Unsuccessful incarceration judge covered-up
- Indisposed at sea, when heading out
- Dispatching missing millions is invalid
- First-class fish on the decline
- Heather, initially very good, is not very well
- Moaning, losing head, is sickening
- Breaking down when female’s gone, languishing
Buddy explains!

The straight part
We know that "Indisposed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case indisposed = ailing.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 AILING mean?
AILING verb- To cause to suffer; to trouble, afflict. (Now chiefly in interrogative or indefinite constructions.)
- To be ill; to suffer; to be troubled.
- An ailment.
- Sickly; sick; ill; unwell.