Cryptic crossword clue
Pianist shortly brought in performed on triangle 7

The most common and most likely answer to this crossword clue is the 7 letter word DELTOID

D
E
L
T
O
I
D

Buddy explains!

The straight part
We know that "triangle" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case triangle = deltoid.
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 DELTOID mean?

DELTOID noun
  1. The deltoid muscle, a triangular muscle on the human shoulder.
  2. The deltoid ligament, a triangular ligament on the human ankle.
DELTOID adjective
  1. In the shape of the upper case Greek letter delta Δ; triangular.
  2. Of, or connected with the deltoid muscle
  3. (of leaves) Of a triangular or roughly triangular shape and attached to the stem via the side.

Latest crossword clues with full explanations