Held by Florence Nightingale's ghost? (6,4)
I believe the answer is:
spirit lamp
'held by florence nightingale's ghost?' is the definition.
I can't judge whether this definition defines the answer.
'by florence nightingale's ghost?' is the wordplay.
'by' says to put letters next to each other.
'florence nightingale's' becomes 'lamp' (I can't justify this - if you can you should give a lot more credence to this answer).
'ghost?' becomes 'spirit' (ghost is a kind of spirit).
'lamp' put after 'spirit' is 'SPIRIT-LAMP'.
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" .)