A royal in cold country given flower (9)
I believe the answer is:
carnation
'flower' is the definition.
(carnation is a kind of flower)
'a royal in cold country' is the wordplay.
'royal' becomes 'r' (abbreviation).
'in' is an insertion indicator.
'cold' becomes 'c' (eg on taps).
'country' becomes 'nation' (synonyms).
'a'+'r'='ar'
'c'+'nation'='cnation'
'ar' going within 'cnation' is 'CARNATION'.
'given' acts as a link.
(Other definitions for carnation that I've seen before include "Anoint car with the strange flower" , "Not in a car (anag) - plant" , "Flower suitable for buttonhole ..." , "Showy flower" , "Flower like pink" .)