Looking at some parsley in gardens (5)
I believe the answer is:
eying
'looking at' is the definition.
(to eye something is to look at it)
'some parsley in gardens' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'EYING' can be found hidden inside 'parsley in gardens'.
(Other definitions for eying that I've seen before include "Interested in visual appearance" , "Watching closely" , "Ogling," , "Observing" , "Looking at closely" .)