See what’s in Hampshire garden (6)
I believe the answer is:
regard
'see' is the definition.
(I know that see can be written as regard)
'in hampshire garden' is the wordplay.
'in' indicates the answer is hidden within the clue.
'REGARD' is hidden in the letters of 'hampshire garden'.
'what's' is the link.
(Other definitions for regard that I've seen before include "Think of" , "Look at - esteem" , "Care" , "Attitude of admiration or esteem" , "Deem, view" .)