The most common and most likely answer to this crossword clue is the 13 letter word ADMINISTRATOR
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More clues leading to the result ADMINISTRATOR
- Transmit radio plays for organiser
- Transmit radio waves for official
- Small guitar pocketed by bent road manager
- Bureaucrat skirts restaurant, being in love, mostly
- Ram's tradition misinterpreted by the chief executive
- Silly idiot ran trams — in this capacity?
- She manages artist cast in small commercial upfront
- Terrible Tim trains road runner
- Director of marketing sent back rubbish creative works featuring car
Buddy explains!

The straight part
We know that "organiser" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case organiser = administrator.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 ADMINISTRATOR mean?
ADMINISTRATOR noun- One who administers affairs; one who directs, manages, executes, or dispenses, whether in civil, judicial, political, or ecclesiastical affairs; a manager
- A person who manages or settles the estate of an intestate, or of a testator when there is no competent executor; one to whom the right of administration has been committed by competent authority
- One who is responsible for software installation, management, information and maintenance of a computer or network