Related Clues:

• That's what makes one begin to be especially perceptive
• The perception of what one begins to espouse
• In short, the sort of 23 across sight that is not short
• How one might perceive that one may be drunk with R Esso
• Such perception would enable one to have seen how to to die afterwards all twisted up
• That letter from Greece is just a particle of a quark
• Might this make one perceptive enough to embrace this Ouse
• Following the afterthought, one particle
• The sort of perception one might get with the Ouse and embrace it
• Initially 'e is soft, by the sound of it, but perceptive
• Would this give one the insight to espouse the Ouse?
• Perception of 35 across
• This does not initially stand to reason
• Initially there's no sense in this, just feeling
• Is this particle a bit of a quark?