Help me, duck, OK? (2-2)
I believe the answer is:
so-so
'ok?' is the definition.
(I've seen this before)
'help me duck' is the wordplay.
'help me' becomes 'SOS' (Save Our Souls distress message).
'duck' becomes 'o' (resembles zero - 'duck' in cricket).
'sos'+'o'='SO-SO'
(Other definitions for so-so that I've seen before include "'Passable, middling (2-2)'" , "just about adequate" , "Barely passable" , "OK, but nothing special" , "Neither good nor bad" .)