Lamp resident? (5)
I believe the answer is:
genie
'lamp resident?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for genie that I've seen before include "Arabian goblin, may be in a bottle" , "Spirit with the power to grant wishes" , "One in Aladdin's lamp" , "means of wishfulfilment" , "Arabian spirit as in Aladdin's lamp" .)