This is the 5872nd most frequent Spanish word.
tela
Fabric or cloth.
In this sentence, 'tela' refers to 'fabric,' the material from which the shirt is made.
La tela de esta camisa es muy suave.
The fabric of this shirt is very soft.
Here, 'tela' is used in the expression 'tela de araña' to mean 'spider web,' a specific web spun by spiders.
La tela de araña brilla con el rocío.
The spider web shines with the dew.
This usage of 'tela' is part of the idiom 'con mucha tela que cortar,' meaning a subject that has a lot to address or consider, metaphorically involving fabric and the act of tailoring.