Tight; stretched (4)
I believe the answer is:
taut
I believe this clue is a double definition.
'tight' is the first definition.
(synonyms)
'stretched' is the second definition.
(I've seen this in another clue)
(Other definitions for taut that I've seen before include "Fully stretched" , "Tense, stretched tight" , "Stretched tight or disciplined" , "Tightly drawn" , "Pulled or drawn tight" .)