Where, in Gulliver's Travels, Paul's possibly given thanks (6)
I believe the answer is:
laputa
'where in gulliver's travels' is the definition.
The definition suggests a singular noun which matches the answer.
'paul's possibly given thanks' is the wordplay.
'possibly' indicates an anagram.
'given' means one lot of letters go next to another.
'thanks' becomes 'ta' (UK informal version of 'thank you').
'paul' is an anagram of 'lapu'.
'lapu'+'ta'='LAPUTA'
Can you help me to learn more?
(Other definitions for laputa that I've seen before include "Flying island visited by Gulliver" , "Gulliver's flying city" , "novel location" , "Flying island in Gulliver's Travels" , "progressive island" .)