The most common and most likely answer to this crossword clue is the 7 letter word REACHED
I've seen this crossword clue in The Daily Telegraph
R
E
A
C
H
E
D
Buddy explains!

The straight part
We know that "Came to" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case came to = reached.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 REACHED mean?
REACHED verb- To extend, stretch, or thrust out (for example a limb or object held in the hand).
- To give to someone by stretching out a limb, especially the hand; to give with the hand; to pass to another person; to hand over.
- To stretch out the hand.
- To attain or obtain by stretching forth the hand; to extend some part of the body, or something held, so as to touch, strike, grasp, etc.
- To strike or touch with a missile.
- Hence, to extend an action, effort, or influence to; to penetrate to; to pierce, or cut.
- To extend to; to stretch out as far as; to touch by virtue of extent.
- To arrive at (a place) by effort of any kind.
- To make contact with.
- To connect with (someone) on an emotional level, making them receptive of (one); to get through to (someone).
- To arrive at a particular destination.
- To continue living until, or up to, a certain age.
- To understand; to comprehend.
- To overreach; to deceive.
- To strain after something; to make (sometimes futile or pretentious) efforts.
- To extend in dimension, time etc.; to stretch out continuously (past, beyond, above, from etc. something).
- To sail on the wind, as from one point of tacking to another, or with the wind nearly abeam.
- To experience a vomiting reflex; to gag; to retch.