A source of light at the seance? (6,4)
I believe the answer is:
spirit lamp
'a source' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'light at the seance?' is the wordplay.
'light' becomes 'lamp' (lamp is a kind of light).
'at' is a charade indicator (letters next to each other) (I've seen this in other clues).
'the seance?' becomes 'spirit' (I can't justify this - if you can you should give a lot more credence to this answer).
'lamp' put after 'spirit' is 'SPIRIT-LAMP'.
'of' is the link.
Can you help me to learn more?
(Other definitions for spirit lamp that I've seen before include "Meths-burning light" , "this'll lighten things up" .)