The most common and most likely answer to this crossword clue is the 7 letter word KEISTER
K
E
I
S
T
E
R
More clues leading to the result KEISTER
Buddy explains!
The straight part
We know that "Trump’s behind" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case trump’s behind = keister.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 KEISTER mean?
KEISTER noun- The anus or buttocks.
- A safe, a strongbox.
- A suitcase; a satchel.
- To conceal something in one's rectum