Dipso, tosspot? That covers it (3)
I believe the answer is:
sot
'dipso tosspot?' is the definition.
'sot' can be an answer for 'tosspot?' (I've seen this in another clue). I am not sure about the 'dipso' bit.
'covers it' is the wordplay.
'covers' becomes 'so' (I am not sure about this - if you are sure you should believe this answer much more).
'it' becomes ''t' (abbreviation. e.g. in 'tis).
'so'+'t'='SOT'
'that' acts as a link.
Can you help me to learn more?
(Other definitions for sot that I've seen before include "One's often intoxicated" , "A chronic drinker" , "drunk" , "Lush" , "Habitual drunkard" .)