Persistent.

[Sea Devil]

Persistently obtrusive matter.

-i-g / -h-r-e-- / -e-d ?

[kettledrum]

This has been answered several times as King Charles's Head

[Sea Devil]

I am awfully sorry. It is, however, the first time I have asked it. I asked the question because I didn't know the answer. This is the reason for me visiting this site. I apologize for not knowing the answer. I shall take your supercilious feelings into consideration before needlessly asking a question in future.

[renno_one]

king / charels / head

[kettledrum]

Sea Devil - I'm sorry if you misunderstood me. It wasn't meant to be a supercilious remark, but as it had been answered so many times before by other people I didn't want to claim the credit myself for knowing the answer.

That having been said, it's quite a good idea to type a key word into the search box - to be found under the list of topics on the left hand side. In this case, if you type in 'persistently' and press GO, the front page of answers (20 replies) shows 10 instances of this question having been answered....likewise in 'quizzes and puzzles'