Pricked by a wild rose? (4)
I believe the answer is:
sore
'pricked' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives occasionally mean the same thing.
'a wild rose?' is the wordplay.
'a wild' indicates an anagram.
'rose' with letters rearranged gives 'SORE'.
'by' acts as a link.
Can you help me to learn more?
(Other definitions for sore that I've seen before include "source of distress" , "Painful, or the source of pain" , "Raw place (on the body)" , "Spot of aggravation" , "Bruised" .)