The most common and most likely answer to this crossword clue is the 13 letter word PARAPHERNALIA
I've seen this crossword clue in The Times
P
A
R
A
P
H
E
R
N
A
L
I
A
More clues leading to the result PARAPHERNALIA
- Soldier on airplane ordered to carry hot gear
- Equipment soldier put on rickety airplane outside hospital
- Equipment that’s ruined a plan, I hear, below standard
- Soldier approaches broken-down airplane carrying hospital equipment
- Tackle soldier accosting the woman wearing a plain woolly
- Fixed a paper handrail with no end of aid and equipment
- Soldier with ‘chute heading for Hungary in airplane adjusted equipment
- Suffering parental pariah has no time for such trappings
- Soldier sent to Rhine with a pal, moving bits of equipment
- Equipment Ian and Raphael flogged is below standard
Buddy explains!

The straight part
We know that "Equipment" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case equipment = paraphernalia.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.