Answer:
An antonym
Step-by-step explanation:
In the given sentence, the context clue that would assist the readers in finding the meaning of the word 'guile' would be 'the antonym of the word.'
The first part of the sentence talks about the characteristics of Andrea's opponent and the use of 'but' symbolizes the contrasting character traits.
This will help the readers get the opposite meaning of the word 'guile' and hence, they can infer that 'guile' means the opposite of 'honest and straightforward' i.e. 'deceptive and cunning.'