Argument about a rubbish bin that's very colourful! (7)
I believe the answer is:
rainbow
'very colourful' is the definition.
I can't tell whether this definition defines the answer.
'argument about a rubbish bin' is the wordplay.
'argument' becomes 'row' (to row is to argue).
'about' is an insertion indicator.
'rubbish' indicates an anagram (a poor quality or rubbish spelling of the letters).
'bin' with letters rearranged gives 'inb'.
'a'+'inb'='ainb'
'row' placed around 'ainb' is 'RAINBOW'.
'that's' is the link.
Can you help me to learn more?
(Other definitions for rainbow that I've seen before include "display of colour" , "Refracted light in sky" , "Sort of trout" , "Colourful display" , "I won bra (anag.)" .)