Modifying Title Line

You can style it any way you like using CSS in your child theme.
To put it to the left, try this:

.c-accordion__title:after {
   right: auto;
   left: 0;
}

You can also set the colour, font weight, etc. You can even change it to a different character or symbol if you want, e.g.

.c-accordion__title:after {
    content: "Expand +";
}

If putting the plus sign on the left, you’d also need to add some left padding to the title to make room for it.
e.g.

.c-accordion__title {
    padding-left: 20px;
}

You may also want to style the closing symbol, for example to add the word “CLOSE” and make it red:

.is-open .c-accordion__title:after {
    content: "CLOSE \2212";
    color: red;
}

The possibilities are endless. Have fun.

Thanks I’ll experiment Saturday

Works as hoped. thanks