The most common and most likely answer to this crossword clue is the 13 letter word DISENCUMBERED
D
I
S
E
N
C
U
M
B
E
R
E
D
Buddy explains!

The straight part
We know that "this" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case this = disencumbered.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.
Crossword Answer definitions
DISENCUMBERED verb- To remove an encumbrance or burden from (someone or something).