1) Attentive 2) Cautiously attentive 3) Giving attention 4) How a helmsman should be 5) Paying attention 6) Taking heed 7) Thoughtful Found on https://www.crosswordclues.com/clue/heedful
Heed'ful adjective Full of heed; regarding with care; cautious; circumspect; attentive; vigilant. Shak. -- Heed'ful*ly , adverb -- Heed'ful*ness , noun Found on http://www.encyclo.co.uk/webster/H/26