Bouquet of roses on counter (4)
I believe the answer is:
nose
'bouquet' is the definition.
(I've seen this before)
'roses on counter' is the wordplay.
'roses' says the letters should be written backwards (I've seen 'rose' mean this).
'counter' becomes 'se' (I am not sure about this - if you are sure you should believe this answer much more).
'on' backwards is 'no'.
'no'+'se'='NOSE'
'of' is the link.
Can you help me to learn more?
(Other definitions for nose that I've seen before include "Cyrano's large feature" , "Front of an aircraft" , "It detects by smell" , "Schnozzle" , "Faculty for detecting" .)