Travel in tight space (8)
I believe the answer is:
interval
'space' is the definition.
(both can mean a gap)
'travel in tight' is the wordplay.
'tight' indicates anagramming the letters (tight can mean drunk).
'travel'+'in'='travelin'
'travelin' is an anagram of 'INTERVAL'.
(Other definitions for interval that I've seen before include "Time to read programme notes, perhaps" , "A break as in travel" , "Break, gap" , "Travel in (anag.)" , "Pause in middle of performance" .)