Fed up with soldiers entering garden? (5)
I believe the answer is:
bored
'fed up' is the definition.
(fed up can mean bored)
'soldiers entering garden?' is the wordplay.
'soldiers' becomes 'or' (Other Ranks).
'entering' indicates putting letters inside.
'garden?' becomes 'bed' (I've seen this in other clues).
'or' inserted within 'bed' is 'BORED'.
'with' is the link.
(Other definitions for bored that I've seen before include "Drilled; fed up" , "Weary and impatient" , "Drilled (a hole)" , "Brassed off" , "Used drill on" .)