Leaves children behind at home filling baths (7)
I believe the answer is:
spinach
'leaves' is the definition.
(leafy vegetable)
'children behind at home filling baths' is the wordplay.
'children' becomes 'ch' (genealogical abbreviation).
'behind' is a charade indicator (letters next to each other).
'at home' becomes 'in' (similar in meaning).
'filling' means one lot of letters goes inside another.
'baths' becomes 'spa' (as in a spa centre).
'in' put within 'spa' is 'spina'.
'ch' put after 'spina' is 'SPINACH'.
(Other definitions for spinach that I've seen before include "Vegetable plant" , "Popeye's strength-giver" , "leaves on plate?" , "Popeye the Sailor's vegetable of choice" , "Vegetable leaves" .)