Cryptic crossword clue
Completely frustrated, I had returned before she had 6

The most common and most likely answer to this crossword clue is the 6 letter word DISHED

I've seen this crossword clue in The Daily Telegraph
D
I
S
H
E
D

Buddy explains!

The straight part
We know that "Completely frustrated" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case completely frustrated = dished.
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 DISHED mean?

DISHED verb
  1. To put in a dish or dishes; serve, usually food.
  2. To gossip; to relay information about the personal situation of another.
  3. To make concave, or depress in the middle, like a dish.
  4. To frustrate; to beat; to outwit or defeat.
DISHED adjective
  1. Shaped like a dish; concave.

Latest crossword clues with full explanations