Yankee catching fish? On the contrary -- fibbing (5)
I believe the answer is:
lying
'the contrary fibbing' is the definition.
'lying' can be an answer for 'fibbing' (I've seen this before). I am not sure about the 'the contrary' bit.
'yankee catching fish?' is the wordplay.
'yankee' becomes 'y' (phonetic alphabet: alpha, bravo, charlie etc.).
'catching' means one lot of letters goes inside another (I've seen this in other clues).
'fish?' becomes 'ling' (ling is a kind of fish).
'y' placed inside 'ling' is 'LYING'.
'on' acts as a link.
Can you help me to learn more?
(Other definitions for lying that I've seen before include "Not standing" , "Deviating from truth" , "Resting horizontally; fibbing" , "Telling falsehoods" , "Prostrate -- prone" .)