The most common and most likely answer to this crossword clue is the 10 letter word PROVISIONS
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More clues leading to the result PROVISIONS
Buddy explains!

The straight part
We know that "plans" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case plans = provisions.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 PROVISIONS mean?
PROVISIONS noun- An item of goods or supplies, especially food, obtained for future use.
- The act of providing, or making previous preparation.
- Money set aside for a future event.
- A liability or contra account to recognise likely future adverse events associated with current transactions.
- A clause in a legal instrument, a law, etc., providing for a particular matter; stipulation; proviso.
- Regular induction into a benefice, comprehending nomination, collation, and installation.
- A nomination by the pope to a benefice before it became vacant, depriving the patron of his right of presentation.
- To supply with provisions.
- To supply (a user) with an account, resources, etc. so that they can use a system.