Related Clues:

• Tension-filled
• Wide apart
• Spy-movie review adjective
• Allowing no play
• Without much slack
• Not at all droopy
• Hard gold in middle of dry spot
• Like a newly installed fan belt
• Without much give
• Having little give
• Not at all lax
• Like guitar strings, often
• Tightly-strung
• Like many a thriller
• Verbally instructed and no slackness evident here