Timber car carries media boss (5)
I believe the answer is:
cedar
'timber' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'car carries media boss' is the wordplay.
'carries' indicates putting letters inside (inserted letters carried inside).
'media boss' becomes 'ed' (short for editor).
'car' placed around 'ed' is 'CEDAR'.
Can you help me to learn more?
(Other definitions for cedar that I've seen before include "Leaving body" , "Raced around a great hardwood tree" , "Tall conifer" , "Fragrant conifer" , "may have needles?" .)