Dictionary

make heavy weather of en · VERB

(transitive) To overcomplicate (something); to make (things) appear worse than they are.
- Philosophers, possibly with justification, make heavy weather of the concept of causation, but to a working biologist causation is a rather simple statistical concept. 1982, Richard Dawkins, The Extended Phenotype: The Long Reach of the Gene, Oxford University Press:

Spelling	Features	Labels	Source
making heavy weather of	Tense=Pres, VerbForm=Part		lexicographic
made heavy weather of	Tense=Past, VerbForm=Part		lexicographic
made heavy weather of	Tense=Past		lexicographic
makes heavy weather of	Number=Sing, Person=3, Tense=Pres		lexicographic
make heavy going of		alternative	lexicographic