Papa poorly? This may help (4)
I believe the answer is:
pill
'this may help' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'papa poorly?' is the wordplay.
'papa' becomes 'P' (phonetic alphabet: alpha, bravo, charlie etc.).
'poorly?' becomes 'ill' ('ill' can be similar in meaning to 'poorly').
'p'+'ill'='PILL'
Can you help me to learn more?
(Other definitions for pill that I've seen before include "nuisance to put up with" , "Medicinal tablet" , "may be the cure" , "Medicinal pellet" , "Lozenge" .)