Where sweet may be found, cold one? (4)

I believe the answer is:

cone

'where sweet may be found' is the definition.
(as in an ice cream cone)

'cold one?' is the wordplay.
'cold' becomes 'c' (eg on taps).
'c'+'one'='CONE'

(Other definitions for cone that I've seen before include "It produces the seed for the pine tree" , "Tapering solid" , "Portable marker for lines on road" , "Edible ice cream container" , "Motorway menace" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app