What about showing more friendliness? (4)
I believe the answer is:
thaw
'more friendliness?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'what about' is the wordplay.
'about' is an anagram indicator.
'what' is an anagram of 'THAW'.
'showing' acts as a link.
Can you help me to learn more?
(Other definitions for thaw that I've seen before include "(Of snow) start to melt" , "Become more friendly" , "Unfreeze, defrost" , "As Lewis's boss, you'll have seen me" , "What - melt like snow?" .)