Healthy hot drink (4)
'healthy' is the definition.
('hale' can be similar in meaning to 'healthy')
'hot drink' is the wordplay.
'hot' becomes 'h'.
'drink' becomes 'ale' (ale is a kind of drink).
(Other definitions for hale that I've seen before include "Sound of body", "Strong and healthy", "Well", "Showing vigorous good health", "Healthy and hearty".)