Hi @LouiseHarris1
A couple of ideas that might be of use:
If you're authoring your survey in Survey123 Connect, one option would be to use a guidance hint. Guidance hints appear under the question label, either as a 'lightbulb' icon in the Survey123 field app, or an expandable panel in the web app. See the documentation on hints for more details.
Alternatively, you could use a note question inside a group that uses the compact appearance (collapsed by default) - users could expand the group if they need to read the notes.
Hope this helps. Best, Jim