Fancy dropping in to get the picture! (5)
I believe the answer is:
image
'fancy' is the definition.
(I know that fancy can be written as image)
'dropping in to get the picture' is the wordplay.
'dropping' says to take the initial letters (I've seen 'drop of' mean this).
'to get the picture' becomes 'mage' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The first letter of 'in' is 'i'.
'i'+'mage'='IMAGE'
Can you help me to learn more?
(Other definitions for image that I've seen before include "Vision" , "Photo or likeness" , "Simile, metaphor" , "of Kairos with Melchior?" , "Likeness, could be spitting" .)