The most common and most likely answer to this crossword clue is the 9 plus 5 letter word SCRUBBING BRUSH
I've seen this crossword clue in The Guardian
S
C
R
U
B
B
I
N
G
B
R
U
S
H
More clues leading to the result SCRUBBING BRUSH
Buddy explains!
The straight part
We know that "I’m often out on the tiles" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case i’m often out on the tiles = scrubbing brush.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.