It's nothing for wild bees to be very plump (5)
I believe the answer is:
obese
'very plump' is the definition.
'obese' can be an answer for 'plump' (I've seen this in another clue). I'm not certain of the 'very' bit.
'it's nothing for wild bees' is the wordplay.
'it's nothing' becomes 'O' (looks like zero - 0).
'for' means one lot of letters go next to another.
'wild' is an anagram indicator.
'bees' is an anagram of 'bese'.
'o'+'bese'='OBESE'
'to be' acts as a link.
Can you help me to learn more?
(Other definitions for obese that I've seen before include "having generous corporation" , "Grossly overweight" , "Enormously portly" , "Unusually fat" , "Falstaffian" .)