He's good at balancing Telegraph puzzles with IT work (9,6)
I believe the answer is:
tightrope walker
'he's good at balancing' is the definition.
The definition suggests a singular noun which matches the answer.
'telegraph puzzles with it work' is the wordplay.
'puzzles with' is an anagram indicator.
'it'+'work'='itwork'
'telegraph' mixed up with 'itwork' gives 'TIGHTROPE WALKER'.
Can you help me to learn more?
(Other definitions for tightrope walker that I've seen before include "circus act" , "Funambulist'" , "Circus performer" , "As one taking highly risky steps" , "Charles Blondin, perhaps" .)