Thought I had it on a 4 with the same word, no doubt, as a few of you but nope, wrong last letter. A 5 for me
Well I didn't show much of this here, scoring a 5 despite finding 4 letters by the end of line 2. Optical and gas go with this word.
...... enough? Hang on that isn't 5 letters or does it have an American spelling A 3 for me in under a minute, not bad for a plumber/electrician/ joiner/ allround good guy