Bachelor takes walk in the bush (7)
I believe the answer is:
bramble
'bush' is the definition.
(thesaurus)
'bachelor takes walk' is the wordplay.
I cannot really see how this works, but
'bachelor' could be 'b' (abbreviation e.g. BA=Bachelor of Arts) and 'b' is found in the answer.
'walk' could be 'ramble' (ramble is a kind of walk) and 'ramble' is present in the answer.
No letters remain.
This explanation may well be incorrect...
'in the' is the link.
Can you help me to learn more?
(Other definitions for bramble that I've seen before include "Prickly hazard" , "Prickly plant yielding blackberries" , "Wild thorny shrub" , "Wild blackberry bush" , "Briar" .)