Pay for ultimate in mulch, put amongst flourishing roses - equine source? (5,5)
I believe the answer is:
shire horse
'pay for ultimate in mulch put amongst flourishing roses' is the definition.
I can't tell whether this defines the answer.
'equine source?' is the wordplay.
'equine' becomes 'shire' (shire is a kind of equine).
'source?' becomes 'horse' (I can't explain this - if you can you should believe this answer much more).
'shire'+'horse'='SHIRE-HORSE'
Can you help me to learn more?
(Other definitions for shire horse that I've seen before include "Powerful breed of working animal" , "Large draught animal" , "One good at drawing" , "Strong draught animal" .)