The most common and most likely answer to this crossword clue is the 5 plus 3 plus 3 letter word BRACE AND BIT
I've seen this crossword clue in The Guardian
B
R
A
C
E
A
N
D
B
I
T
Buddy explains!
The straight part
We know that "boring too" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case boring too = brace and bit.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.