I land us in trouble getting something for the garden perhaps (7)
I believe the answer is:
sundial
'something for the garden perhaps' is the definition.
'i land us in trouble' is the wordplay.
'in trouble' indicates an anagram.
'i'+'land'+'us'='ilandus'
'ilandus' is an anagram of 'SUNDIAL'.
'getting' is the link.
(Other definitions for sundial that I've seen before include "Simple timepiece" , "Shadow timer" , "Old timer?" , "Primitive timepiece" , "Instrument showing the time" .)