[Don't forget about me!] (4)
I believe the answer is:
ahem
'don't forget about me' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ahem that I've seen before include "Throat clearing sound to catch attention" , "Attention-grabbing expression" , "Polite noise to draw attention" , "Attention-getter" , "Exclamation attracting attention" .)