For the journey back, the same case (6)
I believe the answer is:
tripod
'for' is the definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?
'journey back the same case' is the wordplay.
'journey' becomes 'trip' (trip is a kind of journey).
'back' is a reversal indicator.
'the same' becomes 'ditto' (ditto means the same as previously mentioned).
'case' means to remove the middle letters.
'ditto' with its centre removed is 'do'.
'do' reversed gives 'od'.
'trip'+'od'='TRIPOD'
'the' is the link.
Can you help me to learn more?
(Other definitions for tripod that I've seen before include "Pay heed" , "support called for" , "Stand on three legs" , "Stand for camera etc" , "Three-legged stand as for camera" .)