The most common and most likely answer to this crossword clue is the 10 letter word TIN-OPENER
I've seen this crossword clue in The Guardian
T
I
N
-
O
P
E
N
E
R
More clues leading to the result TIN-OPENER
Buddy explains!
The straight part
We know that "utensil/utensil" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case utensil/utensil = tin-opener.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 TIN-OPENER mean?
TIN-OPENER noun- A can opener