A little girl's hot meal? (4)
I believe the answer is:
dish
'meal?' is the definition.
(I've seen this in other clues)
'a little girl's hot' is the wordplay.
'a little girl's' becomes 'Dis' (short for Diane, Diana etc).
'hot' becomes 'h' (abbreviation eg on taps).
'dis'+'h'='DISH'
(Other definitions for dish that I've seen before include "(Food for) serving plate" , "Directional antenna -- good-looking woman or man" , "Food container; aerial" , "One who's fetching" , "Receptacle" .)