Colour of rose, garden, shed, reds? (6)
I believe the answer is:
orange
'colour' is the definition.
(I know that orange is a colour)
'of rose garden shed reds?' is the wordplay.
'of' indicates anagramming the letters (the answer comes from or 'of' the letters).
'shed' suggests deleting specific letters.
'rose'+'garden'='rosegarden'
'rosegarden' with 'reds' taken away is 'ogaren'.
'ogaren' with letters rearranged gives 'ORANGE'.
(Other definitions for orange that I've seen before include "Loyalist colour" , "One's pipped" , "Princely house" , "Dutch royal house" , "Type of fruit from which bergamot comes" .)