LBULL. As this is your first post please can I offer some advice.
The header should be the name of the paper or quiz or whatever - not stuck on 17d!
Give the full clue - which you didnt. Then give the number of letters (if crossword) and any letters that you have e.g. (6) -T--R-
It is nice to also say can anyone help please or something similar.
Then, when you do get an answer, you can add a post to your own thread, with a thank you.
Hope you enjoy answerbank - and I am only telling you all this so that we can assist you more easily if necessary in future.