Tight skirt finally seen after adjustment (5)
I believe the answer is:
tense
'tight' is the definition.
(similar in meaning)
'skirt finally seen after adjustment' is the wordplay.
'finally' suggests the final letters.
'after adjustment' is an anagram indicator.
The final letter of 'skirt' is 't'.
'seen' is an anagram of 'ense'.
't'+'ense'='TENSE'
(Other definitions for tense that I've seen before include "Under emotional strain" , "Drawn" , "Strained by time in grammar" , "Stretched tight or rigid" , "Anxious - future, perhaps?" .)