Anagrams of: TENDERHEARTED

• (of flora or fauna) likely in the near future to become endangered

• made hard or flexible or resilient especially by heat treatment

• protected against attack (especially by nuclear weapons)

• used of persons; emotionally hardened

• made tough by habitual exposure

• converted to solid form (as concrete)

• (of bolts or screws) having screw threads

• give encouragement to

• someone who has red hair

• North American diving duck with a grey-and-black body and reddish-brown head

• black-and-white North American woodpecker having a red head and neck