Problem for camel's back continues, unsightly growth returning
I believe the answer is:
last straw
'problem for camel's back' is the definition.
I know that 'camel' relates to this answer.
'continues unsightly growth returning' is the wordplay.
'continues' becomes 'lasts' (I can't explain this - if you can you should give a lot more credence to this answer).
'unsightly growth' becomes 'wart' (I've seen this before).
'returning' shows that the letters should be reversed in order.
'wart' in reverse letter order is 'traw'.
'lasts'+'traw'='LAST STRAW'
Can you help me to learn more?
(Other definitions for last straw that I've seen before include "The final provocation" , "Start laws (anag) ? breaking point?" , "Something tipping the balance" , "The one that breaks the camel's back" , "ultimate irritation" .)